{"id":3957,"date":"2026-08-14T07:53:18","date_gmt":"2026-08-14T07:53:18","guid":{"rendered":"https:\/\/www.rlfasteners.com\/?p=3957"},"modified":"2026-09-03T07:32:59","modified_gmt":"2026-09-03T07:32:59","slug":"fastener-failure-analysis","status":"publish","type":"post","link":"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/","title":{"rendered":"\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7834\u58ca\u89e3\u6790\uff1a\u52d5\u7684\u8ca0\u8377\u4e0b\u3067\u306e\u81ea\u52d5\u8eca\u7528\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u75b2\u52b4\u7834\u58ca\u3068\u6c34\u7d20\u8106\u5316\u306e\u539f\u56e0\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u76ee\u6b21\u3092\u5207\u308a\u66ff\u3048\u308b\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u30c8\u30b0\u30eb<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Quick_Answer\" title=\"\u30af\u30a4\u30c3\u30af\u30a2\u30f3\u30b5\u30fc\uff1a\">\u30af\u30a4\u30c3\u30af\u30a2\u30f3\u30b5\u30fc\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Why_can_fastener_failure_become_costly_in_automotive_applications\" title=\"\u81ea\u52d5\u8eca\u7528\u9014\u3067\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7834\u640d\u304c\u30b3\u30b9\u30c8\u5897\u306b\u3064\u306a\u304c\u308b\u7406\u7531\">\u81ea\u52d5\u8eca\u7528\u9014\u3067\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7834\u640d\u304c\u30b3\u30b9\u30c8\u5897\u306b\u3064\u306a\u304c\u308b\u7406\u7531<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#What_are_the_common_automotive_bolt_failure_modes\" title=\"\u4e00\u822c\u7684\u306a\u81ea\u52d5\u8eca\u7528\u30dc\u30eb\u30c8\u306e\u7834\u640d\u30e2\u30fc\u30c9\">\u4e00\u822c\u7684\u306a\u81ea\u52d5\u8eca\u7528\u30dc\u30eb\u30c8\u306e\u7834\u640d\u30e2\u30fc\u30c9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Fatigue_failure\" title=\"\u75b2\u52b4\u7834\u58ca\">\u75b2\u52b4\u7834\u58ca<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Shear_failure\" title=\"\u305b\u3093\u65ad\u7834\u58ca\">\u305b\u3093\u65ad\u7834\u58ca<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Corrosion-induced_failure\" title=\"\u8150\u98df\u8a98\u767a\u7834\u58ca\">\u8150\u98df\u8a98\u767a\u7834\u58ca<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Loosening_from_vibration\" title=\"\u632f\u52d5\u306b\u3088\u308b\u7de9\u307f\">\u632f\u52d5\u306b\u3088\u308b\u7de9\u307f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#How_can_each_type_of_fastener_failure_be_prevented\" title=\"\u5404\u30bf\u30a4\u30d7\u306e\u30d5\u30a1\u30b9\u30ca\u30fc\u7834\u640d\u3092\u9632\u6b62\u3059\u308b\u65b9\u6cd5\">\u5404\u30bf\u30a4\u30d7\u306e\u30d5\u30a1\u30b9\u30ca\u30fc\u7834\u640d\u3092\u9632\u6b62\u3059\u308b\u65b9\u6cd5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Controlling_fatigue_and_shear\" title=\"\u75b2\u52b4\u3068\u305b\u3093\u65ad\u306e\u5236\u5fa1\">\u75b2\u52b4\u3068\u305b\u3093\u65ad\u306e\u5236\u5fa1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Managing_corrosion_and_hydrogen_risk\" title=\"\u8150\u98df\u3068\u6c34\u7d20\u30ea\u30b9\u30af\u306e\u7ba1\u7406\">\u8150\u98df\u3068\u6c34\u7d20\u30ea\u30b9\u30af\u306e\u7ba1\u7406<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Keeping_vibration_from_reducing_preload\" title=\"\u632f\u52d5\u306b\u3088\u308b\u4e88\u5727\u4f4e\u4e0b\u306e\u9632\u6b62\">\u632f\u52d5\u306b\u3088\u308b\u4e88\u5727\u4f4e\u4e0b\u306e\u9632\u6b62<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#How_does_CNRL_test_fasteners_before_automotive_use\" title=\"CNRL \u306f\u81ea\u52d5\u8eca\u7528\u9014\u3067\u306e\u4f7f\u7528\u524d\u306b\u3069\u306e\u3088\u3046\u306b\u30d5\u30a1\u30b9\u30ca\u30fc\u3092\u30c6\u30b9\u30c8\u3057\u307e\u3059\u304b\uff1f\">CNRL \u306f\u81ea\u52d5\u8eca\u7528\u9014\u3067\u306e\u4f7f\u7528\u524d\u306b\u3069\u306e\u3088\u3046\u306b\u30d5\u30a1\u30b9\u30ca\u30fc\u3092\u30c6\u30b9\u30c8\u3057\u307e\u3059\u304b\uff1f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Mechanical_and_dimensional_checks\" title=\"\u6a5f\u68b0\u7684\u304a\u3088\u3073\u5bf8\u6cd5\u691c\u67fb\">\u6a5f\u68b0\u7684\u304a\u3088\u3073\u5bf8\u6cd5\u691c\u67fb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#Surface_and_defect_inspection\" title=\"\u8868\u9762\u304a\u3088\u3073\u6b20\u9665\u691c\u67fb\">\u8868\u9762\u304a\u3088\u3073\u6b20\u9665\u691c\u67fb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/bolt\/fastener-failure-analysis\/#CNRL_Your_Trusted_Fastener_Solution_Provider\" title=\"CNRL\u3001\u4fe1\u983c\u3067\u304d\u308b\u30d5\u30a1\u30b9\u30ca\u30fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\">CNRL\u3001\u4fe1\u983c\u3067\u304d\u308b\u30d5\u30a1\u30b9\u30ca\u30fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quick_Answer\"><\/span><strong>\u7c21\u5358\u306a\u7b54\u3048<\/strong>:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u52d5\u8eca\u306b\u4f7f\u7528\u3055\u308c\u308b\u30d5\u30a1\u30b9\u30ca\u30fc\u306f\u3001\u75b2\u52b4\u3001\u305b\u3093\u65ad\u3001\u8150\u98df\u95a2\u9023\u306e\u4e80\u88c2\u3001\u307e\u305f\u306f\u632f\u52d5\u306b\u3088\u308b\u7de9\u307f\u306b\u3088\u3063\u3066\u7834\u640d\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30a8\u30f3\u30b8\u30f3\u306e\u632f\u52d5\u3001\u9053\u8def\u304b\u3089\u306e\u885d\u6483\u3001\u30d6\u30ec\u30fc\u30ad\u3001\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u306e\u632f\u52d5\u306b\u3088\u308a\u3001\u63a5\u5408\u90e8\u306b\u304b\u304b\u308b\u529b\u304c\u7d76\u3048\u305a\u5909\u5316\u3059\u308b\u305f\u3081\u3001\u52d5\u7684\u8ca0\u8377\u306f\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u306f\u308b\u304b\u306b\u5371\u967a\u306b\u3057\u307e\u3059\u3002 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7834\u640d\u89e3\u6790\u306f\u3001\u7834\u9762\u3001\u63a5\u5408\u90e8\u306e\u72b6\u614b\u3001\u30dc\u30eb\u30c8\u306e\u8ca0\u8377\u3001\u8150\u98df\u3001\u7d44\u307f\u7acb\u3066\u5c65\u6b74\u3092\u8003\u616e\u3057\u3066\u5b9f\u65bd\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e80\u88c2\u307e\u305f\u306f\u7834\u640d\u304c\u767a\u751f\u3057\u305f\u4f4d\u7f6e\u306f\u3001\u3069\u306e\u30bf\u30a4\u30d7\u306e\u554f\u984c\u304c\u7834\u640d\u306e\u539f\u56e0\u3067\u3042\u3063\u305f\u304b\u3092\u5224\u65ad\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002CNRL \u306f\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e <a href=\"https:\/\/www.rlfasteners.com\/ja\/automotive-solution\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u81ea\u52d5\u8eca\u7528\u30d5\u30a1\u30b9\u30ca\u30fc<\/a>\u30dc\u30eb\u30c8\u3001\u30b9\u30bf\u30c3\u30c9\u3001\u306d\u3058\u3001\u30ca\u30c3\u30c8\u306a\u3069\u3001\u30a8\u30f3\u30b8\u30f3\u3001\u30b7\u30e3\u30fc\u30b7\u3001\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30b7\u30e7\u30f3\u3001\u30d6\u30ec\u30fc\u30ad\u3001\u5b89\u5168\u30b7\u30b9\u30c6\u30e0\u7528\u3092\u88fd\u9020\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2026\/09\/d9658feca39844f8316f23d0eb84ae52-1-1024x512.png\" alt=\"\u75b2\u52b4\u304a\u3088\u3073\u6c34\u7d20\u8106\u5316\u306b\u3088\u308b\u81ea\u52d5\u8eca\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u6545\u969c\" class=\"wp-image-3989\" srcset=\"https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2026\/09\/d9658feca39844f8316f23d0eb84ae52-1-1024x512.png 1024w, https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2026\/09\/d9658feca39844f8316f23d0eb84ae52-1-18x9.png 18w, https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2026\/09\/d9658feca39844f8316f23d0eb84ae52-1-300x150.png 300w, https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2026\/09\/d9658feca39844f8316f23d0eb84ae52-1-768x384.png 768w, https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2026\/09\/d9658feca39844f8316f23d0eb84ae52-1.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_can_fastener_failure_become_costly_in_automotive_applications\"><\/span>\u81ea\u52d5\u8eca\u7528\u9014\u3067\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7834\u640d\u304c\u30b3\u30b9\u30c8\u5897\u306b\u3064\u306a\u304c\u308b\u7406\u7531<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5358\u7d14\u306a\u30dc\u30eb\u30c8\u3067\u3082\u3001\u5927\u304d\u306a\u8eca\u4e21\u7d44\u307f\u7acb\u3066\u30b7\u30b9\u30c6\u30e0\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u30d5\u30a1\u30b9\u30ca\u30fc\u304c\u30af\u30e9\u30f3\u30d7\u80fd\u529b\u3092\u5931\u3063\u305f\u308a\u7834\u640d\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u90e8\u54c1\u304c\u610f\u56f3\u3057\u305f\u9650\u754c\u3092\u8d85\u3048\u3066\u52d5\u304f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d50\u679c\u3068\u3057\u3066\u3001\u7570\u97f3\u306e\u767a\u751f\u3001\u6f0f\u308c\u3001\u4f4d\u7f6e\u305a\u308c\u3001\u90e8\u54c1\u306e\u640d\u50b7\u3001\u307e\u305f\u306f\u63a5\u5408\u6a5f\u80fd\u306e\u6545\u969c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30a8\u30f3\u30b8\u30f3\u3001\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u3001\u30b9\u30c6\u30a2\u30ea\u30f3\u30b0\u3001\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30b7\u30e7\u30f3\u3001\u30d6\u30ec\u30fc\u30ad\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u52d5\u7684\u8ca0\u8377\u304c\u304b\u304b\u308b\u30d5\u30a1\u30b9\u30ca\u30fc\u304c\u3042\u308b\u305f\u3081\u3001\u7279\u306b\u8106\u5f31\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u52d5\u7684\u8ca0\u8377\u306f\u3001\u7834\u640d\u304c\u5f90\u3005\u306b\u9032\u884c\u3059\u308b\u53ef\u80fd\u6027\u3082\u610f\u5473\u3057\u307e\u3059\u3002\u30dc\u30eb\u30c8\u306f\u3001\u5c0f\u3055\u306a\u4e80\u88c2\u304c\u6700\u7d42\u7684\u306a\u7834\u65ad\u3092\u5f15\u304d\u8d77\u3053\u3059\u307b\u3069\u5927\u304d\u304f\u306a\u308b\u524d\u306b\u3001\u6570\u5343\u56de\u306e\u30b5\u30a4\u30af\u30eb\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u304c\u3001\u52a0\u3048\u3089\u308c\u305f\u8ca0\u8377\u304c\u4e00\u5ea6\u306e\u30a4\u30d9\u30f3\u30c8\u3067\u30dc\u30eb\u30c8\u3092\u7834\u58ca\u3059\u308b\u306e\u306b\u5341\u5206\u306a\u5927\u304d\u3055\u306b\u898b\u3048\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u75b2\u52b4\u7834\u58ca\u304c\u767a\u751f\u3059\u308b\u7406\u7531\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_common_automotive_bolt_failure_modes\"><\/span>\u4e00\u822c\u7684\u306a\u81ea\u52d5\u8eca\u306e <strong>\u30dc\u30eb\u30c8\u7834\u640d\u30e2\u30fc\u30c9<\/strong>?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u30dc\u30eb\u30c8\u7834\u640d\u30e2\u30fc\u30c9\u306f\u3001\u3059\u3079\u3066\u540c\u3058\u8a3c\u62e0\u3092\u6b8b\u3059\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5404\u30e2\u30fc\u30c9\u304c\u3069\u306e\u3088\u3046\u306b\u767a\u751f\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u5358\u306b\u7834\u640d\u3057\u305f\u90e8\u54c1\u3092\u4ea4\u63db\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fatigue_failure\"><\/span>\u75b2\u52b4\u7834\u58ca<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u75b2\u52b4\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u304c\u7e70\u308a\u8fd4\u3057\u5fdc\u529b\u5909\u52d5\u306b\u3055\u3089\u3055\u308c\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u5c0f\u3055\u306a\u4e80\u88c2\u304c\u3001\u306d\u3058\u306e\u6839\u5143\u3084\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u8868\u9762\u306b\u767a\u751f\u3057\u59cb\u3081\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5404\u8ca0\u8377\u30b5\u30a4\u30af\u30eb\u3067\u3001\u4e80\u88c2\u304c\u6210\u9577\u3057\u3001\u30dc\u30eb\u30c8\u304c\u652f\u6301\u3067\u304d\u306a\u304f\u306a\u308b\u307b\u3069\u5c0f\u3055\u304f\u306a\u308a\u3001\u7a81\u7136\u306e\u7834\u65ad\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u72b6\u614b\u306f\u3001\u4e88\u5727\u4e0d\u8db3\u306b\u3088\u3063\u3066\u60aa\u5316\u3057\u3001\u63a5\u5408\u90e8\u306e\u5206\u96e2\u307e\u305f\u306f\u6ed1\u308a\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u30dc\u30eb\u30c8\u306e\u30b5\u30a4\u30af\u30eb\u8ca0\u8377\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u305f\u304c\u3063\u3066\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7834\u640d\u89e3\u6790\u306f\u3001\u7834\u640d\u3057\u305f\u30dc\u30eb\u30c8\u3092\u8abf\u3079\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u308c\u3092\u8d85\u3048\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Shear_failure\"><\/span>\u305b\u3093\u65ad\u7834\u58ca<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u305b\u3093\u65ad\u306b\u3088\u308b\u7834\u640d\u306f\u3001\u30dc\u30eb\u30c8\u306b\u5bfe\u3057\u3066\u8ef8\u65b9\u5411\u3067\u306f\u306a\u304f\u6a2a\u65b9\u5411\u306b\u52a0\u3048\u3089\u308c\u308b\u529b\u306e\u7d50\u679c\u3067\u3059\u3002\u3053\u308c\u306f\u30012\u3064\u306e\u63a5\u7d9a\u90e8\u54c1\u306e\u9593\u3067\u6ed1\u308a\u52d5\u4f5c\u304c\u3042\u308b\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30dc\u30eb\u30c8\u306e\u305b\u3093\u65ad\u306e\u539f\u56e0\u306f\u3001\u63a5\u5408\u90e8\u306e\u904e\u8ca0\u8377\u3001\u4e0d\u9069\u5207\u306a\u30b5\u30a4\u30ba\u3001\u30b0\u30ec\u30fc\u30c9\u3001\u8a2d\u8a08\u306e\u30dc\u30eb\u30c8\u306e\u4f7f\u7528\u3001\u307e\u305f\u306f\u4e0d\u5341\u5206\u306a\u30af\u30e9\u30f3\u30d7\u8377\u91cd\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u3001\u30af\u30e9\u30f3\u30d7\u8377\u91cd\u306f\u7279\u306b\u91cd\u8981\u3067\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u63a5\u5408\u90e8\u306e\u30af\u30e9\u30f3\u30d7\u9762\u9593\u306e\u6469\u64e6\u304c\u52d5\u304d\u306b\u62b5\u6297\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30af\u30e9\u30f3\u30d7\u8377\u91cd\u304c\u6e1b\u5c11\u3057\u305f\u5834\u5408\u3001\u90e8\u6750\u306f\u6ed1\u308a\u59cb\u3081\u3001\u30dc\u30eb\u30c8\u8ef8\u304c\u305b\u3093\u65ad\u5fdc\u529b\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Corrosion-induced_failure\"><\/span>\u8150\u98df\u8a98\u767a\u7834\u58ca<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8150\u98df\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u65ad\u9762\u7a4d\u3092\u6e1b\u5c11\u3055\u305b\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30d4\u30c3\u30c1\u30f3\u30b0\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u5fdc\u529b\u96c6\u4e2d\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u9053\u8def\u306e\u5869\u3001\u6e7f\u6c17\u3001\u71b1\u3001\u5316\u5b66\u7269\u8cea\u3068\u306e\u63a5\u89e6\u304c\u3042\u308b\u5834\u6240\u3001\u7279\u306b\u8eca\u4e21\u306e\u4e0b\u3084\u6392\u6c17\u30b7\u30b9\u30c6\u30e0\u5468\u8fba\u3067\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u5f37\u5ea6\u92fc\u30d5\u30a1\u30b9\u30ca\u30fc\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u3082\u3046 1 \u3064\u306e\u554f\u984c\u306f\u3001\u6c34\u7d20\u8106\u5316\u3067\u3059\u3002\u6c34\u7d20\u306f\u3001\u88fd\u9020\u304a\u3088\u3073\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30bb\u30b9\u3001\u307e\u305f\u306f\u74b0\u5883\u304b\u3089\u3055\u3048\u3082\u3001\u611f\u53d7\u6027\u306e\u9ad8\u3044\u92fc\u306b\u5165\u308a\u8fbc\u3080\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u7d50\u679c\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306f\u5f15\u5f35\u5fdc\u529b\u304c\u304b\u304b\u308b\u3068\u9045\u5ef6\u7834\u58ca\u3092\u8d77\u3053\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u6700\u521d\u306f\u30dc\u30eb\u30c8\u306f\u6b63\u5e38\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u3057\u3070\u3089\u304f\u3059\u308b\u3068\u4e80\u88c2\u304c\u5165\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u305f\u304c\u3063\u3066\u3001 <a href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/automotive-chemicals-corrosion-fastener-protection\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u8150\u98df\u4fdd\u8b77<\/a> \u306e\u9078\u629e\u306f\u3001\u6750\u6599\u306e\u7a2e\u985e\u3001\u5f37\u5ea6\u30af\u30e9\u30b9\u3001\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u624b\u9806\u3001\u304a\u3088\u3073\u30b5\u30fc\u30d3\u30b9\u74b0\u5883\u306b\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u308a\u826f\u3044\u30dc\u30eb\u30c8\u3092\u5165\u624b\u3059\u308b\u3060\u3051\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u554f\u984c\u306e\u89e3\u6c7a\u7b56\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Loosening_from_vibration\"><\/span>\u632f\u52d5\u306b\u3088\u308b\u7de9\u307f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u632f\u52d5\u306f\u3001\u5fc5\u305a\u3057\u3082\u30dc\u30eb\u30c8\u3092\u76f4\u63a5\u7834\u58ca\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001\u7e70\u308a\u8fd4\u3057\u306e\u6a2a\u65b9\u5411\u306e\u52d5\u304d\u304c\u30af\u30e9\u30f3\u30d7\u529b\u3092\u5f90\u3005\u306b\u4f4e\u4e0b\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e88\u5727\u304c\u4f4e\u4e0b\u3059\u308b\u3068\u3001\u63a5\u5408\u9762\u306e\u6ed1\u308a\u304c\u59cb\u307e\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30dc\u30eb\u30c8\u306f\u610f\u56f3\u3057\u305f\u3088\u308a\u3082\u5927\u304d\u306a\u30b5\u30a4\u30af\u30eb\u5fdc\u529b\u3068\u52d5\u304d\u3092\u7d4c\u9a13\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u52b9\u679c\u7684\u306a\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7de9\u307f\u9632\u6b62\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u4e88\u5727\u3092\u9054\u6210\u3059\u308b\u3053\u3068\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u306d\u3058\u306e\u72b6\u614b\u3001\u7de0\u3081\u4ed8\u3051\u65b9\u6cd5\u3001\u8868\u9762\u4ed5\u4e0a\u3052\u3001\u63a5\u5408\u90e8\u306e\u525b\u6027\u3001\u304a\u3088\u3073\u30ed\u30c3\u30af\u65b9\u6cd5\u3082\u3001\u7de9\u307f\u306b\u5bfe\u3059\u308b\u8010\u6027\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8eca\u4e21\u306e\u904b\u8ee2\u4e2d\u306b\u632f\u52d5\u304c\u7d9a\u304f\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u3001\u30a8\u30f3\u30b8\u30f3\u3001\u30b7\u30e3\u30fc\u30b7\u3001\u304a\u3088\u3073\u30d1\u30ef\u30fc\u30c8\u30ec\u30a4\u30f3\u306e\u63a5\u5408\u90e8\u3067\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_can_each_type_of_fastener_failure_be_prevented\"><\/span>\u5404\u30bf\u30a4\u30d7\u306e\u30d5\u30a1\u30b9\u30ca\u30fc\u7834\u640d\u3092\u9632\u6b62\u3059\u308b\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9632\u6b62\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u3068\u63a5\u5408\u90e8\u306e\u8a2d\u8a08\u3092\u5b9f\u969b\u306e\u8ca0\u8377\u306b\u5408\u308f\u305b\u308b\u3053\u3068\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u539f\u56e0\u3092\u7279\u5b9a\u305b\u305a\u306b\u7834\u640d\u3057\u305f\u30dc\u30eb\u30c8\u3092\u3088\u308a\u9ad8\u5f37\u5ea6\u306e\u3082\u306e\u306b\u4ea4\u63db\u3057\u3066\u3082\u3001\u554f\u984c\u304c\u5225\u306e\u5834\u6240\u306b\u79fb\u52d5\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Controlling_fatigue_and_shear\"><\/span>\u75b2\u52b4\u3068\u305b\u3093\u65ad\u306e\u5236\u5fa1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u75b2\u52b4\u5236\u5fa1\u306f\u3001\u30b5\u30a4\u30af\u30eb\u30dc\u30eb\u30c8\u5fdc\u529b\u3092\u610f\u56f3\u3057\u305f\u7bc4\u56f2\u5185\u306b\u4fdd\u3064\u3053\u3068\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u9069\u5207\u306a\u4e88\u5727\u306f\u3001\u30af\u30e9\u30f3\u30d7\u3055\u308c\u305f\u90e8\u54c1\u304c\u63a5\u89e6\u3057\u305f\u307e\u307e\u3067\u3042\u308b\u3053\u3068\u3092\u52a9\u3051\u3001\u63a5\u5408\u90e8\u3067\u306e\u52d5\u304d\u3092\u6e1b\u3089\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305b\u3093\u65ad\u95a2\u9023\u306e\u554f\u984c\u306b\u3064\u3044\u3066\u306f\u3001\u63a5\u5408\u90e8\u306b\u306f\u5341\u5206\u306a\u30af\u30e9\u30f3\u30d7\u529b\u3068\u3001\u4e88\u60f3\u3055\u308c\u308b\u6a2a\u65b9\u5411\u8ca0\u8377\u306b\u9069\u3057\u305f\u30d5\u30a1\u30b9\u30ca\u30fc\u5bf8\u6cd5\u3082\u5fc5\u8981\u3067\u3059\u3002\u5b9f\u969b\u306e\u30dc\u30eb\u30c8\u305b\u3093\u65ad\u306e\u539f\u56e0\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u554f\u984c\u304c\u8ca0\u8377\u3001\u63a5\u5408\u90e8\u306e\u52d5\u304d\u3001\u30b5\u30a4\u30ba\u3001\u307e\u305f\u306f\u6750\u6599\u9078\u629e\u306e\u3044\u305a\u308c\u306b\u8d77\u56e0\u3059\u308b\u304b\u3092\u5224\u65ad\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Managing_corrosion_and_hydrogen_risk\"><\/span>\u8150\u98df\u3068\u6c34\u7d20\u30ea\u30b9\u30af\u306e\u7ba1\u7406<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6750\u6599\u3068\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u9078\u629e\u306f\u3001\u6c34\u3001\u9053\u8def\u306e\u5869\u3001\u5316\u5b66\u7269\u8cea\u3001\u304a\u3088\u3073\u6e29\u5ea6\u3078\u306e\u66b4\u9732\u3092\u53cd\u6620\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u611f\u53d7\u6027\u306e\u9ad8\u3044\u9ad8\u5f37\u5ea6\u92fc\u306e\u5834\u5408\u3001\u88fd\u9020\u7ba1\u7406\u3082\u91cd\u8981\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u52a0\u5de5\u4e2d\u306b\u5c0e\u5165\u3055\u308c\u305f\u6c34\u7d20\u304c\u9045\u5ef6\u7834\u58ca\u306e\u4e00\u56e0\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30bb\u30b9\u3068\u5fc5\u8981\u306a\u5f8c\u51e6\u7406\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u4ed5\u69d8\u306b\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Keeping_vibration_from_reducing_preload\"><\/span>\u632f\u52d5\u306b\u3088\u308b\u4e88\u5727\u4f4e\u4e0b\u306e\u9632\u6b62<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9069\u5207\u306a\u7de0\u3081\u4ed8\u3051\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7de9\u307f\u9632\u6b62\u306e\u4e2d\u5fc3\u3068\u306a\u308a\u307e\u3059\u3002\u4e88\u5727\u304c\u5c11\u306a\u3059\u304e\u308b\u3068\u52d5\u304d\u304c\u751f\u3058\u3001\u7de0\u3081\u4ed8\u3051\u304c\u904e\u5270\u306b\u306a\u308b\u3068\u30d5\u30a1\u30b9\u30ca\u30fc\u304c\u4f38\u3073\u305f\u308a\u640d\u50b7\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u30b8\u30e7\u30a4\u30f3\u30c8\u306b\u30ed\u30c3\u30af\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30d7\u30ea\u30d9\u30a4\u30ea\u30f3\u30b0\u30c8\u30eb\u30af\u30ca\u30c3\u30c8\u3084\u305d\u306e\u4ed6\u306e\u6a5f\u68b0\u7684\u30ed\u30c3\u30af\u8a2d\u8a08\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u9078\u629e\u3055\u308c\u305f\u65b9\u6cd5\u306f\u3001\u4e0d\u9069\u5207\u306a\u30d5\u30a1\u30b9\u30ca\u30fc\u3084\u7de0\u3081\u4ed8\u3051\u4ed5\u69d8\u3092\u88dc\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u30b8\u30e7\u30a4\u30f3\u30c8\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<style>\n  .product-card {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    height: 400px;\n    border: 1px solid #ddd;\n    border-radius: 10px;\n    overflow: hidden;\n    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);\n    max-width: 900px;\n    margin: 0 auto;\n    gap: 40px;\n    padding: 20px;\n    box-sizing: border-box;\n  }\n\n  .product-left,\n  .product-right {\n    flex: 1 1 50%;\n    display: flex;\n    flex-direction: column;\n    justify-content: center;\n    align-items: center;\n    text-align: center;\n  }\n\n  .product-left {\n    gap: 20px;\n  }\n\n  .product-title {\n    font-size: 24px;\n    font-weight: 700;\n    color: #b59d53;\n    margin: 0;\n  }\n\n  .product-button {\n    background-color: transparent;\n    color: #b59d53;\n    border: 2px solid #b59d53;\n    padding: 12px 24px;\n    font-size: 15px;\n    border-radius: 6px;\n    cursor: pointer;\n    transition: all 0.3s ease;\n    text-decoration: none;\n    display: inline-block;\n  }\n\n  .product-button:hover {\n    border-color: #333333;\n    color: #333333;\n    transform: scale(1.1);\n  }\n\n  .product-right img {\n    max-width: 100%;\n    max-height: 360px;\n    object-fit: contain;\n    border-radius: 10px;\n  }\n\n  @media (max-width: 768px) {\n    .product-card {\n      flex-direction: column;\n      height: auto;\n      padding: 15px;\n      gap: 15px;\n    }\n\n    .product-left,\n    .product-right {\n      flex: none;\n      width: 100%;\n      text-align: center;\n    }\n\n    .product-right img {\n      max-height: 300px;\n      margin-bottom: 15px;\n    }\n\n    .product-left {\n      order: 2;\n      gap: 10px;\n      align-items: center;\n    }\n\n    .product-right {\n      order: 1;\n    }\n  }\n<\/style>\n\n<div class=\"product-card\">\n\n  <div class=\"product-right\">\n    <img decoding=\"async\"\n      src=\"https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2024\/12\/%E8%9E%BA%E6%A0%932.jpg\"\n      alt=\"\u9ad8\u5f35\u529b 12.9 \u30b0\u30ec\u30fc\u30c9 \u30bd\u30b1\u30c3\u30c8 \u30b7\u30e7\u30eb\u30c0\u30fc \u30dc\u30eb\u30c8\"\n    \/>\n  <\/div>\n\n  <div class=\"product-left\">\n\n    <p class=\"product-title\">\n      \u9ad8\u5f35\u529b 12.9 \u30b0\u30ec\u30fc\u30c9 \u30bd\u30b1\u30c3\u30c8 \u30b7\u30e7\u30eb\u30c0\u30fc \u30dc\u30eb\u30c8\n    <\/p>\n\n    <a\n      href=\"https:\/\/www.rlfasteners.com\/ja\/products\/socket-shoulder-bolts-high-tensile-12-9-grade\/\"\n      target=\"_blank\"\n      class=\"product-button\"\n    >\n      \u8a73\u7d30\u60c5\u5831\n    <\/a>\n\n  <\/div>\n\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_does_CNRL_test_fasteners_before_automotive_use\"><\/span>CNRL \u306f\u81ea\u52d5\u8eca\u7528\u9014\u3067\u306e\u4f7f\u7528\u524d\u306b\u3069\u306e\u3088\u3046\u306b\u30d5\u30a1\u30b9\u30ca\u30fc\u3092\u30c6\u30b9\u30c8\u3057\u307e\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c6\u30b9\u30c8\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u304c\u81ea\u52d5\u8eca\u306e\u7d44\u307f\u7acb\u3066\u306b\u5165\u308b\u524d\u306b\u3001\u5bf8\u6cd5\u3001\u6a5f\u68b0\u7684\u7279\u6027\u3001\u8868\u9762\u3001\u304a\u3088\u3073\u6750\u6599\u306e\u554f\u984c\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CNRL \u306f\u5f15\u5f35\u5f37\u5ea6\u3092\u30ea\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059 <a href=\"https:\/\/www.rlfasteners.com\/ja\/equipment\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u8a66\u9a13\u6a5f<\/a>\u3001\u786c\u5ea6\u8a08\u3001\u5869\u6c34\u5674\u9727\u88c5\u7f6e\u3001\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u539a\u3055\u6e2c\u5b9a\u5668\u3001\u5bf8\u6cd5\u691c\u67fb\u88c5\u7f6e\u3001\u304a\u3088\u3073 3D\u6e2c\u5b9a\u30b7\u30b9\u30c6\u30e0\u3092\u30c6\u30b9\u30c8\u30ea\u30bd\u30fc\u30b9\u3068\u3057\u3066\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u540c\u793e\u306f\u307e\u305f\u3001\u9069\u7528\u53ef\u80fd\u306a\u751f\u7523\u30d7\u30ed\u30bb\u30b9\u306b\u304a\u3051\u308b\u6b20\u9665\u691c\u51fa\u306e\u305f\u3081\u306b\u78c1\u7c89\u63a2\u50b7\u304a\u3088\u3073\u6e26\u96fb\u6d41\u63a2\u50b7\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mechanical_and_dimensional_checks\"><\/span>\u6a5f\u68b0\u7684\u304a\u3088\u3073\u5bf8\u6cd5\u691c\u67fb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f15\u5f35\u304a\u3088\u3073 <a href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/manufacturer\/rockwell-vs-vickers-vs-brinell-hardness-testing\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u786c\u5ea6\u8a66\u9a13<\/a> \u306f\u3001 <a href=\"https:\/\/www.rlfasteners.com\/ja\/blog\/automotive-fastener\/what-is-fastener-tensile-strength-and-yield-strength\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u6a5f\u68b0\u7684\u7279\u6027<\/a> \u304c\u6307\u5b9a\u3055\u308c\u305f\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u5bf8\u6cd5\u691c\u67fb\u306f\u3001\u76f4\u5f84\u3001\u306d\u3058\u5f62\u72b6\u3001\u305d\u306e\u4ed6\u306e\u56f3\u9762\u8981\u4ef6\u306a\u3069\u306e\u7279\u5fb4\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u30c1\u30a7\u30c3\u30af\u306f\u3001\u4e0d\u9069\u5207\u306a\u5bf8\u6cd5\u307e\u305f\u306f\u6a5f\u68b0\u7684\u7279\u6027\u304c\u3044\u304f\u3064\u304b\u306e\u539f\u56e0\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u91cd\u8981\u3067\u3059\u3002 <strong>\u30dc\u30eb\u30c8\u7834\u640d\u30e2\u30fc\u30c9<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Surface_and_defect_inspection\"><\/span>\u8868\u9762\u304a\u3088\u3073\u6b20\u9665\u691c\u67fb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5869\u6c34\u5674\u9727\u304a\u3088\u3073\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u539a\u3055\u8a66\u9a13\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u8868\u9762\u51e6\u7406\u3092\u8a55\u4fa1\u3067\u304d\u307e\u3059\u3002\u78c1\u7c89\u63a2\u50b7\u307e\u305f\u306f\u6e26\u96fb\u6d41\u63a2\u50b7\u306f\u3001\u76ee\u8996\u691c\u67fb\u3060\u3051\u3067\u306f\u660e\u3089\u304b\u3067\u306f\u306a\u3044\u53ef\u80fd\u6027\u306e\u3042\u308b\u7279\u5b9a\u306e\u6b20\u9665\u3092\u691c\u51fa\u3059\u308b\u306e\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b8c\u5168\u306a\u30d5\u30a1\u30b9\u30ca\u30fc\u6545\u969c\u89e3\u6790\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002\u6545\u969c\u306e\u9632\u6b62\u306f\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u304c\u56f3\u9762\u3001\u6750\u6599\u3001\u6a5f\u68b0\u7684\u7279\u6027\u3001\u304a\u3088\u3073\u8868\u9762\u306e\u8981\u4ef6\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304b\u3089\u3001\u53d6\u308a\u4ed8\u3051\u524d\u306b\u59cb\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.rlfasteners.com\/ja\/company-profile\/\" target=\"_blank\" rel=\"noreferrer noopener\">CNRL \u306e<\/a>\u30c6\u30b9\u30c8\u30bb\u30f3\u30bf\u30fc\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u5b66\u3073\u3001\u81ea\u52d5\u8eca\u30d5\u30a1\u30b9\u30ca\u30fc\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u691c\u67fb\u8981\u4ef6\u306b\u3064\u3044\u3066\u8a71\u3057\u5408\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<style>\n  \/* \u53ea\u4f5c\u7528\u4e8e CTA \u5361\u7247\u5185\u90e8 *\/\n  .cnrl-card-container {\n    display: flex;\n    flex-direction: column;\n    justify-content: center;\n    align-items: center;\n    gap: 24px;\n    text-align: center;\n\n    background-image:\n      linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),\n      url('https:\/\/www.rlfasteners.com\/wp-content\/uploads\/2025\/08\/image.jpeg');\n    background-size: cover;\n    background-position: center;\n\n    padding: 60px 20px;\n    border-radius: 8px;\n    color: #ffffff !important;\n    font-family: Arial, sans-serif;\n    box-shadow: 0 4px 6px rgba(0,0,0,0.1);\n    margin: 20px 0;\n  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#0056b3;\n    color: #ffffff !important;\n  }\n<\/style>\n\n<div class=\"cnrl-card-container\">\n\n  <h3 class=\"cnrl-card-title\"><span class=\"ez-toc-section\" id=\"CNRL_Your_Trusted_Fastener_Solution_Provider\"><\/span>\n    CNRL\u3001\u4fe1\u983c\u3067\u304d\u308b\u30d5\u30a1\u30b9\u30ca\u30fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\n  <span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n  <p class=\"cnrl-card-desc\">\n    \u30b0\u30ed\u30fc\u30d0\u30ebOEM\u5411\u3051\u306e\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u30d5\u30a1\u30b9\u30ca\u30fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3068\u30a2\u30c9\u30d0\u30a4\u30b9\n  <\/p>\n\n  <a\n    href=\"https:\/\/www.rlfasteners.com\/ja\/contact\/\"\n    target=\"_blank\"\n    class=\"cnrl-btn\">\n    \u898b\u7a4d\u3082\u308a\u3092\u4f9d\u983c\u3059\u308b\n  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