{"id":3090,"date":"2026-05-02T08:00:00","date_gmt":"2026-05-02T08:00:00","guid":{"rendered":"https:\/\/www.cnxdauto.com\/?p=3090"},"modified":"2026-05-17T07:58:52","modified_gmt":"2026-05-17T07:58:52","slug":"bolt-fatigue-failure-prevention-analysis-guide","status":"publish","type":"post","link":"https:\/\/www.cnxdauto.com\/ar\/blog\/automotive-fasteners\/bolt-fatigue-failure-prevention-analysis-guide\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0645\u0646\u0639 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u0627\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f: \u062f\u0644\u064a\u0644 \u0647\u0646\u062f\u0633\u064a \u0643\u0627\u0645\u0644"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>\u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong> \u0647\u0648 \u0627\u0644\u062a\u0634\u0642\u0642\u0627\u062a \u0627\u0644\u062a\u062f\u0631\u064a\u062c\u064a\u0629 \u0648\u0627\u0644\u0643\u0633\u0631 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0644\u0644\u0628\u0631\u063a\u064a \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u062a\u062d\u0645\u064a\u0644 \u0648\u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0645\u062a\u0643\u0631\u0631.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 <strong>\u062a\u0642\u0627\u0631\u064a\u0631 \u062a\u062d\u0644\u064a\u0644 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u0627\u063a\u064a \u0628\u0635\u064a\u063a\u0629 PDF<\/strong> \u060c \u062a\u0634\u0643\u0644 \u0627\u0644\u0625\u062c\u0647\u0627\u062f\u0627\u062a \u0645\u0627 \u064a\u0642\u062f\u0631 \u0628\u0640 90\u066a \u0645\u0646 \u062c\u0645\u064a\u0639 \u062d\u0627\u0644\u0627\u062a \u0641\u0634\u0644 \u0627\u0644\u0645\u062b\u0628\u062a\u0627\u062a \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u062e\u062f\u0645\u0629.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0633\u062a\u0643\u0634\u0641 \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 <a href=\"https:\/\/www.cnxdauto.com\/ar\/automotive-bolts-manufacturer\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u0623\u0633\u0628\u0627\u0628 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong><\/a><strong>, \u060c \u0648\u0623\u0645\u062b\u0644\u0629 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong>, \u060c \u0648\u0643\u064a\u0641\u064a\u0629 \u0645\u0646\u0639\u0647.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0627\u0644\u0623\u0633\u0628\u0627\u0628 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"655\" src=\"https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-1200x655.webp\" alt=\"4 \u0623\u0633\u0628\u0627\u0628 \u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0641\u0634\u0644 \u062a\u0639\u0628 \u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631\" class=\"wp-image-3084\" title=\"\" srcset=\"https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-1200x655.webp 1200w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-500x273.webp 500w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-300x164.webp 300w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-768x419.webp 768w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-18x10.webp 18w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-138x75.webp 138w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-480x262.webp 480w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733-800x436.webp 800w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-2-e1778758693733.webp 1397w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0646\u0634\u0623 \u0641\u0634\u0644 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0639\u0644\u0649 \u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u062c\u0647\u0631\u064a \u0642\u0628\u0644 \u0623\u0646 \u064a\u062a\u0637\u0648\u0631 \u0625\u0644\u0649 \u0643\u0633\u0631 \u0643\u0627\u0645\u0644. \u0641\u0647\u0645 \u0647\u0630\u0647 \u0627\u0644\u0623\u0633\u0628\u0627\u0628 \u064a\u0633\u0645\u062d \u0644\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 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\u064a\u0645\u062a\u0635 \u0627\u0644\u0628\u0631\u063a\u064a \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0643\u0627\u0645\u0644\u0629 \u0644\u0644\u0623\u062d\u0645\u0627\u0644 \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u0627\u0644\u062f\u0648\u0631\u064a\u0629.<\/li>\n\n\n\n<li><strong>\u0627\u0644\u0627\u0647\u062a\u0632\u0627\u0632 \u0648\u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621:<\/strong> \u0627\u0644\u062d\u0648\u0627\u0641 \u063a\u064a\u0631 \u0627\u0644\u0645\u062a\u0648\u0627\u0632\u064a\u0629 \u0623\u0648 <a href=\"https:\/\/www.cnxdauto.com\/ar\/product-category\/nuts\/locking-nuts\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.cnxdauto.com\/product-category\/nuts\/locking-nuts\/\" rel=\"noreferrer noopener\">\u0627\u0647\u062a\u0632\u0627\u0632\u0627\u062a \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/a> \u062a\u064f\u062f\u062e\u0644 \u0642\u0648\u0649 \u062c\u0627\u0646\u0628\u064a\u0629 \u062a\u064f\u062a\u0639\u0628 \u0627\u0644\u0645\u0639\u062f\u0646.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.cnxdauto.com\/ar\/blog\/automotive-fasteners\/corrosion-resistant-fasteners-prevent-rust-automotive\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.cnxdauto.com\/blog\/automotive-fasteners\/corrosion-resistant-fasteners-prevent-rust-automotive\/\" rel=\"noreferrer noopener\">\u062a\u0622\u0643\u0644 \u0627\u0644\u062a\u0646\u0642\u064a\u0631<\/a>:<\/strong> \u0627\u0644\u062a\u0641\u0627\u0639\u0644\u0627\u062a \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u062a\u062e\u0644\u0642 \u062d\u0641\u0631\u064b\u0627 \u0633\u0637\u062d\u064a\u0629 \u062a\u0639\u0645\u0644 \u0643\u0645\u0648\u0627\u0642\u0639 \u0645\u062b\u0627\u0644\u064a\u0629 \u0644\u0628\u062f\u0621 \u0634\u0642\u0648\u0642 \u0627\u0644\u062a\u0639\u0628.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0645\u0627 \u0647\u064a \u0623\u0645\u062b\u0644\u0629 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f\u061f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u064a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646 <strong>\u0635\u0648\u0631 \u062a\u062d\u0644\u064a\u0644 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u0627\u063a\u064a<\/strong> \u0644\u0644\u062a\u0645\u064a\u064a\u0632 \u0628\u064a\u0646 \u0627\u0644\u062a\u0639\u0628 \u0648\u0627\u0644\u0643\u0633\u0648\u0631 \u0627\u0644\u0642\u0635 \u0623\u0648 \u0627\u0644\u0634\u062f. \u0633\u0637\u062d \u0627\u0644\u062a\u0639\u0628 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a \u064a\u0639\u0631\u0636 \u062e\u0635\u0627\u0626\u0635 \u0645\u0645\u064a\u0632\u0629:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0627\u0644\u0645\u0646\u0634\u0623:<\/strong> \u0645\u0646\u0637\u0642\u0629 \u0635\u063a\u064a\u0631\u0629 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class=\"wp-block-paragraph\">\u064a\u0633\u0627\u0639\u062f \u062a\u0648\u062b\u064a\u0642 \u0647\u0630\u0647 \u0627\u0644\u0623\u0645\u062b\u0644\u0629 \u0641\u0631\u0642 \u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0639\u0644\u0649 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0634\u0643\u0644\u0627\u062a \u0627\u0644\u0645\u062a\u0643\u0631\u0631\u0629 \u0641\u064a \u062e\u0637\u0648\u0637 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0645\u062d\u062f\u062f\u0629.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0648\u0627\u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0641\u0646\u064a\u0629<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0644\u062a\u0646\u0628\u0624 \u0628\u0639\u0645\u0631 \u0627\u0644\u0645\u062b\u0628\u062a\u060c \u064a\u0642\u0648\u0645 \u0627\u0644\u0645\u062d\u062a\u0631\u0641\u0648\u0646 \u0628\u0625\u062c\u0631\u0627\u0621 <strong>\u0627\u062e\u062a\u0628\u0627\u0631 \u0641\u0634\u0644 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u0633\u0645\u0627\u0631<\/strong>. \u062a\u062a\u0628\u0639 \u0647\u0630\u0647 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0645\u0639\u0627\u064a\u064a\u0631 ISO 3800 \u0623\u0648 ASTM F606 \u0644\u062a\u062d\u062f\u064a\u062f \u062d\u062f \u0627\u0644\u062a\u062d\u0645\u0644.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u062d\u0633\u0627\u0628 \u0639\u0645\u0631 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u0633\u0645\u0627\u0631:<\/strong> \u064a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646 \u0645\u0639\u0627\u064a\u064a\u0631 \u062c\u0648\u062f\u0645\u0627\u0646 \u0623\u0648 \u062c\u064a\u0631\u0628\u0631 \u0644\u062a\u062d\u062f\u064a\u062f \u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0623\u0645\u0627\u0646.<\/li>\n\n\n\n<li><strong>\u0627\u0644\u0635\u064a\u063a\u0629:<\/strong> \u064a\u062c\u0628 \u0623\u0646 \u062a\u0623\u062e\u0630 \u0641\u064a \u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631 \u062a\u0634\u0637\u064a\u0628 \u0627\u0644\u0633\u0637\u062d k<sub>a<\/sub> \u0648\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062d\u062c\u0645 k<sub>b<\/sub> \u0644\u0644\u0648\u0635\u0648\u0644 \u0625\u0644\u0649 \u062d\u062f \u062a\u062d\u0645\u0644 \u062f\u0642\u064a\u0642.<\/li>\n\n\n\n<li><strong>\u0623\u0631\u0634\u0641\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a:<\/strong> \u062a\u0648\u0641\u0631 \u0645\u0639\u0638\u0645 \u0627\u0644\u0645\u062e\u062a\u0628\u0631\u0627\u062a <a href=\"https:\/\/www.cnxdauto.com\/ar\/automotive-fastening-solutions\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u062a\u062d\u0644\u064a\u0644 \u0641\u0634\u0644 \u0627\u0644\u0645\u0633\u0645\u0627\u0631 <\/strong>PDF <\/a>\u0623\u0648 <strong>PDF \u0641\u0634\u0644 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u0633\u0645\u0627\u0631<\/strong> \u0644\u0644\u0627\u0645\u062a\u062b\u0627\u0644 \u0637\u0648\u064a\u0644 \u0627\u0644\u0623\u062c\u0644.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0644\u062a\u0642\u062f\u064a\u0631\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0639\u0629\u060c \u0627\u0633\u062a\u062e\u062f\u0645 \u0622\u0644\u0629 \u062d\u0627\u0633\u0628\u0629 \u0631\u0642\u0645\u064a\u0629 \u0644\u0627\u0646\u0647\u064a\u0627\u0631 \u0628\u0631\u0627\u063a\u064a \u0627\u0644\u0625\u062c\u0647\u0627\u062f. \u062a\u0633\u0627\u0639\u062f \u0647\u0630\u0647 \u0627\u0644\u0623\u062f\u0627\u0629 \u0641\u064a \u062a\u062d\u062f\u064a\u062f \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0628\u0631\u063a\u064a \u0645\u0646 \u0627\u0644\u062f\u0631\u062c\u0629 8.8 \u0623\u0648 <a href=\"https:\/\/www.cnxdauto.com\/ar\/blog\/lug-bolts\/high-strength-bolt-grades-comparison-guide\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.cnxdauto.com\/blog\/lug-bolts\/high-strength-bolt-grades-comparison-guide\/\" rel=\"noreferrer noopener\">\u0628\u0631\u063a\u064a \u0645\u0646 \u0627\u0644\u062f\u0631\u062c\u0629 10.9<\/a> \u0645\u0637\u0644\u0648\u0628 \u0644\u062f\u0648\u0631\u0627\u062a \u062a\u062d\u0645\u064a\u0644 \u0645\u062d\u062f\u062f\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0625\u0644\u064a\u0643 \u0645\u0644\u062e\u0635 \u0644\u0640 <strong>\u062d\u0633\u0627\u0628 \u0639\u0645\u0631 \u0628\u0631\u0627\u063a\u064a \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong> \u0627\u0644\u0645\u0639\u0644\u0645\u0627\u062a:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0627\u0644\u0645\u0639\u0644\u0645\u0629<\/strong><\/td><td><strong>\u0627\u0644\u0631\u0645\u0632 \/ \u0627\u0644\u0637\u0631\u064a\u0642\u0629<\/strong><\/td><td><strong>\u0627\u0644\u0646\u0637\u0627\u0642 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a \/ \u0645\u0644\u0627\u062d\u0638\u0629<\/strong><\/td><\/tr><tr><td>\u0625\u062c\u0647\u0627\u062f \u0645\u062a\u0648\u0633\u0637 (\u03c3m)<\/td><td>\u03c3m = F_preload \/ As<\/td><td>\u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0648\u0641\u0642\u064b\u0627 \u0644\u0640 <a href=\"https:\/\/www.cnxdauto.com\/ar\/quality-assurance\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.cnxdauto.com\/quality-assurance\/\" rel=\"noreferrer noopener\">ISO 898-1<\/a><\/td><\/tr><tr><td>\u0625\u062c\u0647\u0627\u062f \u0645\u062a\u0646\u0627\u0648\u0628 (\u03c3a)<\/td><td>\u03c3a = \u0394F \/ (2 \u00d7 As)<\/td><td>\u0394F = \u062a\u0628\u0627\u064a\u0646 \u0627\u0644\u062d\u0645\u0644 \u0641\u064a \u0627\u0644\u0648\u0635\u0644\u0629<\/td><\/tr><tr><td>\u0645\u0639\u0627\u0645\u0644 \u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/td><td>Kt = 3.0\u20134.5 (\u062e\u064a\u0648\u0637)<\/td><td>\u0623\u0642\u0644 \u0644\u0644\u062e\u064a\u0648\u0637 \u0627\u0644\u0645\u062f\u0631\u0641\u0644\u0629 \u0645\u0642\u0627\u0628\u0644 \u0627\u0644\u062e\u064a\u0648\u0637 \u0627\u0644\u0645\u0642\u0637\u0648\u0639\u0629<\/td><\/tr><tr><td>\u062a\u0635\u062d\u064a\u062d \u062c\u0648\u062f\u0645\u0627\u0646<\/td><td>\u03c3a\/Se + \u03c3m\/Su = 1<\/td><td>Su = \u0642\u0648\u0629 \u0627\u0644\u0634\u062f \u0627\u0644\u0642\u0635\u0648\u0649<\/td><\/tr><tr><td>\u0639\u0627\u0645\u0644 \u0623\u0645\u0627\u0646 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/td><td>SF = Se \/ (\u03c3a \u00d7 Kt)<\/td><td>SF \u2265 1.5 \u0645\u0648\u0635\u0649 \u0628\u0647 (VDI 2230)<\/td><\/tr><tr><td>\u062d\u062f \u0627\u0644\u062a\u062d\u0645\u0644 (Se)<\/td><td>Se \u2248 0.45 \u00d7 Su (\u0645\u0633\u0627\u0645\u064a\u0631 \u0641\u0648\u0644\u0627\u0630\u064a\u0629)<\/td><td>\u062a\u0645 \u062a\u0639\u062f\u064a\u0644\u0647 \u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062e\u064a\u0637 \u0648\u0627\u0644\u0633\u0637\u062d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<style>\n    :root {\n        --primary-color: #070E42;\n        --text-light: #ffffff;\n        --text-dark: #333333;\n        --border-color: #e0e0e0;\n    }\n\n    .product-card-container {\n        display: flex;\n        flex-direction: row;\n        width: 100%;\n        max-width: 900px; \/* \u63a7\u5236\u5361\u7247\u4e0d\u5360\u636e\u8fc7\u591a\u7248\u9762 *\/\n        margin: 20px auto;\n        border: 1px solid var(--border-color);\n        border-radius: 8px;\n        overflow: hidden;\n        background: #fff;\n        transition: transform 0.3s ease, box-shadow 0.3s ease;\n        font-family: 'Segoe UI', Arial, sans-serif;\n    }\n\n    .product-card-container:hover {\n        transform: translateY(-5px);\n        box-shadow: 0 10px 20px rgba(0,0,0,0.1);\n    }\n\n    \/* \u5de6\u4fa7\u56fe\u7247\u533a\u57df *\/\n    .card-image-box {\n        flex: 0 0 50%; \/* \u5360\u636e50% *\/\n        background-color: #f9f9f9;\n        display: flex;\n        align-items: center;\n        justify-content: center;\n        overflow: hidden;\n    }\n\n    .card-image-box img {\n        width: 100%;\n        height: 100%;\n        object-fit: cover; \/* \u4fdd\u8bc1\u9ad8\u5ea6\u7edf\u4e00\u4e14\u56fe\u7247\u4e0d\u53d8\u5f62 *\/\n        max-height: 320px; \/* \u9650\u5236\u6574\u4f53\u9ad8\u5ea6 *\/\n    }\n\n    \/* \u53f3\u4fa7\u6587\u6848\u533a\u57df *\/\n    .card-content-box {\n        flex: 0 0 50%; \/* \u5360\u636e50% *\/\n        padding: 25px;\n        display: flex;\n        flex-direction: column;\n        justify-content: center;\n        background-color: #fff;\n    }\n\n    .card-title {\n        font-size: 1.25rem;\n        font-weight: 700;\n        color: var(--primary-color);\n        margin-bottom: 15px;\n        line-height: 1.3;\n    }\n\n    .card-specs {\n        list-style: none;\n        padding: 0;\n        margin: 0 0 20px 0;\n    }\n\n    .card-specs li {\n        font-size: 0.95rem;\n        color: var(--text-dark);\n        margin-bottom: 8px;\n        position: relative;\n        padding-left: 18px;\n    }\n\n    .card-specs li::before {\n        content: \"\u2713\";\n        position: absolute;\n        left: 0;\n        color: var(--primary-color);\n        font-weight: bold;\n    }\n\n    \/* \u6309\u94ae\u4ea4\u4e92\u8bbe\u8ba1 *\/\n    .card-button {\n        display: inline-block;\n        width: fit-content;\n        padding: 10px 25px;\n        background-color: var(--primary-color);\n        color: var(--text-light) !important;\n        text-decoration: none;\n        border-radius: 4px;\n        font-weight: 600;\n        border: 2px solid var(--primary-color);\n        transition: all 0.3s ease;\n        text-align: center;\n    }\n\n    .card-button:hover {\n        background-color: #ffffff;\n        color: var(--primary-color) !important;\n    }\n\n    \/* \u54cd\u5e94\u5f0f\u8c03\u6574 (\u624b\u673a\u7aef) *\/\n    @media (max-width: 768px) {\n        .product-card-container {\n            flex-direction: column; \/* \u624b\u673a\u7aef\u53d8\u4e3a\u4e0a\u4e0b\u7ed3\u6784 *\/\n            max-width: 100%;\n        }\n        .card-image-box, .card-content-box {\n            flex: 0 0 100%;\n        }\n        .card-image-box img {\n            max-height: 250px;\n        }\n    }\n<\/style>\n<\/head>\n<body>\n\n<div class=\"product-card-container\">\n    <div class=\"card-image-box\">\n        <img decoding=\"async\" src=\"https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2025\/12\/H385abf4ce7104d53b5377a6e7a37ddabC.jpg\" alt=\"\u0628\u0631\u063a\u064a \u0631\u0623\u0633 \u0627\u0644\u0623\u0633\u0637\u0648\u0627\u0646\u0629 \u0645\u0627\u062f\u0629 \u062d\u062f\u064a\u062f\u064a\u0629 \u0644\u0640 DUSTER Nissan Renault Igh\" title=\"\">\n    <\/div>\n\n    <div class=\"card-content-box\">\n        <span class=\"card-title\">\u0645\u0627\u062f\u0629 \u062d\u062f\u064a\u062f \u0645\u0633\u0645\u0627\u0631 \u0631\u0623\u0633 \u0627\u0644\u0623\u0633\u0637\u0648\u0627\u0646\u0629 \u0644\u0640 DUSTER Nissan Renault Igh | OEM<\/span>\n        <ul class=\"card-specs\">\n            \u062a\u0645 \u062a\u0635\u0646\u064a\u0639 \u0645\u0633\u0645\u0627\u0631 \u0631\u0623\u0633 \u0627\u0644\u0623\u0633\u0637\u0648\u0627\u0646\u0629 OEM 7701471373 \u0647\u0630\u0627 \u0645\u0646 \u0645\u0627\u062f\u0629 \u062d\u062f\u064a\u062f \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0642\u0648\u0629 \u0645\u0646 \u0627\u0644\u062f\u0631\u062c\u0629 10.9\/12.9\u060c \u0645\u0645\u0627 \u064a\u0648\u0641\u0631 \u0642\u0648\u0629 \u0634\u062f \u0645\u0645\u062a\u0627\u0632\u0629 \u0648\u0645\u0642\u0627\u0648\u0645\u0629 \u0644\u0644\u0625\u062c\u0647\u0627\u062f. \n        <\/ul>\n        <a href=\"https:\/\/www.cnxdauto.com\/ar\/product\/auto-parts-oem-7701471373-cylinder-head-bolt-iron-material-for-duster-nissan-renault-igh-quality-bolts-for-vehicle\/\" class=\"card-button\">\u0627\u0633\u062a\u0641\u0633\u0631 \u0627\u0644\u0622\u0646<\/a>\n    <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\">\u0643\u064a\u0641 \u062a\u0645\u0646\u0639 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f\u061f<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"963\" height=\"522\" src=\"https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614.webp\" alt=\"\u062f\u0644\u064a\u0644 \u0644\u0645\u0646\u0639 \u0641\u0634\u0644 \u062a\u0639\u0628 \u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631\" class=\"wp-image-3083\" title=\"\" srcset=\"https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614.webp 963w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-500x271.webp 500w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-300x163.webp 300w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-768x416.webp 768w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-18x10.webp 18w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-138x75.webp 138w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-480x260.webp 480w, https:\/\/www.cnxdauto.com\/wp-content\/uploads\/2026\/05\/3-1-e1778758743614-800x434.webp 800w\" sizes=\"auto, (max-width:767px) 480px, (max-width:963px) 100vw, 963px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u0646\u0639 <strong>\u0641\u0634\u0644 \u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631 \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong> \u0623\u0643\u062b\u0631 \u0641\u0639\u0627\u0644\u064a\u0629 \u0645\u0646 \u062d\u064a\u062b \u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0645\u0646 \u0625\u062f\u0627\u0631\u0629 \u0641\u0634\u0644 \u0627\u0644\u0646\u0638\u0627\u0645. \u0627\u062a\u0628\u0639 \u0628\u0631\u0648\u062a\u0648\u0643\u0648\u0644\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u0629 \u0647\u0630\u0647:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u062a\u0637\u0628\u064a\u0642 \u0639\u0632\u0645 \u0627\u0644\u062f\u0648\u0631\u0627\u0646 \u0627\u0644\u0645\u0646\u0627\u0633\u0628:<\/strong> \u0627\u0633\u062a\u062e\u062f\u0645 \u0623\u062f\u0648\u0627\u062a \u0645\u0639\u0627\u064a\u0631\u0629 \u0644\u062a\u062d\u0642\u064a\u0642 \u062d\u0645\u0644 \u0645\u0633\u0628\u0642 \u064a\u062a\u062c\u0627\u0648\u0632 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u062f\u0648\u0631\u064a \u0627\u0644\u0645\u062a\u0648\u0642\u0639.<\/li>\n\n\n\n<li><strong>\u0627\u0633\u062a\u062e\u062f\u0645 <a href=\"https:\/\/www.cnxdauto.com\/ar\/blog\/automotive-fasteners\/rolled-thread-vs-cut-thread-automotive-fasteners-guide\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.cnxdauto.com\/blog\/automotive-fasteners\/rolled-thread-vs-cut-thread-automotive-fasteners-guide\/\" rel=\"noreferrer noopener\">\u0633\u0646\u0648\u0646 \u0645\u062f\u0631\u0641\u0644\u0629<\/a>:<\/strong> \u062a\u0648\u0641\u0631 \u0627\u0644\u0633\u0646\u0648\u0646 \u0627\u0644\u0645\u062f\u0631\u0641\u0644\u0629 \u0639\u0644\u0649 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0639\u062f \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0645\u0642\u0627\u0648\u0645\u0629 \u0641\u0627\u0626\u0642\u0629 \u0644\u0644\u0625\u062c\u0647\u0627\u062f \u0645\u0642\u0627\u0631\u0646\u0629 \u0628\u0627\u0644\u0633\u0646\u0648\u0646 \u0627\u0644\u0645\u0642\u0637\u0648\u0639\u0629.<\/li>\n\n\n\n<li><strong>\u0627\u062e\u062a\u0631 \u0633\u0628\u0627\u0626\u0643 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0642\u0648\u0629:<\/strong> \u062a\u0623\u0643\u062f \u0645\u0646 \u0623\u0646 \u0627\u0644\u0645\u0648\u0627\u062f \u062a\u0644\u0628\u064a \u0645\u0648\u0627\u0635\u0641\u0627\u062a ISO 898-1 \u0644\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629.<\/li>\n\n\n\n<li><strong>\u062a\u0642\u0644\u064a\u0644 \u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0625\u062c\u0647\u0627\u062f:<\/strong> \u062d\u062f\u062f \u0645\u0633\u0627\u0645\u064a\u0631 \u0630\u0627\u062a \u0623\u0642\u0648\u0627\u0633 \u062a\u062d\u062a \u0627\u0644\u0631\u0623\u0633 \u0623\u0643\u0628\u0631 \u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0628\u0627\u0644\u062a\u0633\u0627\u0648\u064a.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u062e\u0627\u062a\u0645\u0629<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u0646\u0639 <strong>\u0641\u0634\u0644 \u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631 \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong> \u064a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0645\u0632\u064a\u062c \u0645\u0646 \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0630\u0643\u064a\u0629 \u0648\u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629. \u0628\u0645\u062c\u0631\u062f \u0641\u0647\u0645\u0643 \u0627\u0644\u0634\u0627\u0626\u0639 <strong>\u0623\u0633\u0628\u0627\u0628 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u063a\u064a \u0628\u0633\u0628\u0628 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/strong>, \u060c \u0645\u062b\u0644 \u0646\u0642\u0627\u0637 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0623\u0648 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0645\u0633\u0628\u0642 \u0627\u0644\u0636\u0639\u064a\u0641\u060c \u064a\u0645\u0643\u0646\u0643 \u0648\u0636\u0639 \u062e\u0637\u0648\u0627\u062a \u0648\u0642\u0627\u0626\u064a\u0629 \u0623\u0641\u0636\u0644.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0641\u0634\u0644 \u0645\u0646 \u062e\u0644\u0627\u0644 <strong>\u0635\u0648\u0631 \u062a\u062d\u0644\u064a\u0644 \u0641\u0634\u0644 \u0627\u0644\u0628\u0631\u0627\u063a\u064a<\/strong> \u0648\u0625\u062c\u0631\u0627\u0621 <strong>\u0627\u062e\u062a\u0628\u0627\u0631 \u0641\u0634\u0644 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u0633\u0645\u0627\u0631<\/strong> \u0647\u064a \u062e\u0637\u0648\u0627\u062a \u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.cnxdauto.com\/ar\/download\/\" target=\"_blank\" rel=\"noreferrer noopener\">CNXD Auto<\/a> \u064a\u0648\u0641\u0631 \u0627\u0644\u062d\u0644 \u0644\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u062b\u0628\u062a\u0627\u062a \u0645\u0646 \u062e\u0644\u0627\u0644 \u0645\u062c\u0645\u0648\u0639\u062a\u0646\u0627 \u0645\u0646 <a href=\"https:\/\/www.cnxdauto.com\/ar\/products\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.cnxdauto.com\/products\/\" rel=\"noreferrer noopener\">\u0645\u0633\u0627\u0645\u064a\u0631 \u0627\u0644\u0633\u064a\u0627\u0631\u0627\u062a \u0648\u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629<\/a>, \u060c \u0648\u0627\u0644\u062a\u064a \u0644\u0647\u0627 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0639\u0627\u0644\u064a\u0629.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u062a\u0648\u0627\u0641\u0642 \u0645\u062b\u0628\u062a\u0627\u062a\u0646\u0627 \u0645\u0639 \u0645\u0639\u0627\u064a\u064a\u0631 ISO 898-1\u060c \u062d\u064a\u062b \u064a\u0645\u0643\u0646\u0646\u0627 \u062a\u0632\u0648\u064a\u062f\u0643 \u0628\u0645\u0633\u0627\u0645\u064a\u0631 \u062a\u0633\u062a\u062e\u062f\u0645 \u0645\u0648\u0627\u062f \u0645\u062b\u0628\u062a\u0629 \u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u062a\u0639\u0628.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.cnxdauto.com\/ar\/contact\/\" style=\"background-color:#5c81f3\" target=\"_blank\" rel=\"noreferrer noopener\">\u0627\u062a\u0635\u0644 \u0628\u0646\u0627 \u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0639\u0631\u0636 \u0623\u0633\u0639\u0627\u0631<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Bolt fatigue failure is the progressive cracking and eventual breakage of a bolt caused by repeated loading and unloading.&nbsp; Based on bolt failure analysis PDF reports,<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":3085,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96],"tags":[],"class_list":["post-3090","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-automotive-fasteners"],"_links":{"self":[{"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/posts\/3090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/comments?post=3090"}],"version-history":[{"count":3,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/posts\/3090\/revisions"}],"predecessor-version":[{"id":3104,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/posts\/3090\/revisions\/3104"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/media\/3085"}],"wp:attachment":[{"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/media?parent=3090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/categories?post=3090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnxdauto.com\/ar\/wp-json\/wp\/v2\/tags?post=3090"}],"curies":[{"name":"\u0648\u0648\u0631\u062f\u0628\u0631\u064a\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}