{"product_id":"464-9191","title":"464-9191","description":"\u003cdiv class=\"productDescription\"\u003e\n\u003cspan style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; margin: 12px 0 16px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eThe Caterpillar 464-9191 12-Point Head Bolt is a high-tensile, heavy-duty mechanical locking fastener. It is engineered to maintain extreme clamping force and prevent joint relaxation across engines, powertrains, and high-stress engine block attachments subject to relentless machine vibrations.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003col style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; margin: 12px 0 16px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)'\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eCore Dimensions \u0026amp; Fastener Specs\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eBolt Length: 8.50 in (215.9 mm)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eGrip Length: 6.00 in (152.4 mm)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eFlange Diameter: 1.13 in (28.7 mm)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eThread Size: 3\/4 inch - 16 (3\/4-16 UNF Fine Thread)\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eDrive Style: Heavy-duty 12-Point Head\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eMaterial \u0026amp; Manufacturing Specs\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eMaterial Grade: Premium high-strength hardened alloy steel engineered to resist severe fatigue.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eCoating \u0026amp; Finish: Corrosion-resistant protective treatment to prevent thread seizing, friction spikes, and environmental rust.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eThread Hand: Standard Right-Hand (RH).\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eDesign Optimization: 12-point head geometry allows for maximum torque application and tighter packaging clearance compared to standard hex head profiles.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\n\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eEquipment \u0026amp; System Compatibility\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eThis high-fatigue structural bolt is standard heavy-duty hardware deployed across a selection of large-scale Caterpillar heavy machinery, powertrain setups, and high-horsepower engine platforms:\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eEngine Platforms: Typically integrated into core block structures, cylinder heads, main bearing caps, and high-load powertrain component couplings.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eHeavy Machinery: Utilized within major machine systems where superior fatigue strength and compact clearance are required for mechanical joints.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin: 0 0 12px; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003e\u003cspan style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003ePart Cross-References\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eAlternative Part Names: 12-Point Flange Bolt, 12-Point Head Bolt, Counterbored Cylinder Head Bolt.\u003cbr style=\"margin: 0; text-decoration: none; border-bottom: 0 rgba(230, 232, 240, 1)\"\u003eAlternative Part Numbers: 4649191, 464-9191.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\u003cbr\u003e","brand":"APSS Store","offers":[{"title":"Default Title","offer_id":58260959035695,"sku":"APSS-ITEM-00007538","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/5826\/9231\/files\/BC_Upload_3cc44c18-86bc-4107-a059-53e3dc85ab84.png?v=1785231505","url":"https:\/\/onlinestore.apss.com\/vi\/products\/464-9191","provider":"APSS Store","version":"1.0","type":"link"}