{"product_id":"arp-pro-series-flexplate-bolt-kit-7-16-20-x-0-680-in-12-point-chromoly-bolts-black-oxide-set-of-6","title":"ARP Pro Series flexplate bolt kit 7\/16-20 x 0.680 in — 12-point chromoly bolts, black oxide, set of 6","description":"\u003cp\u003e\u003cstrong\u003eARP 200-2902 is a Pro Series flexplate bolt kit: six chromoly, 12-point, 7\/16-20 bolts 0.680\" long with a black oxide finish engineered for high-torque driveline connections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis set of six bolts is built for securing flexplates to crankshaft or torque converter hubs where consistent clamping and fatigue resistance matter. Manufactured in the USA and finished in black oxide, these Pro Series fasteners combine high-strength chromoly steel with a 12-point head profile for superior tool access in tight spaces. The 0.680\" shank length and 7\/16-20 UNF thread size match many Chevrolet and replacement flexplate applications, while ARP’s precision manufacturing reduces variability and improves repeatable torque results.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes these bolts different from standard hardware?\u003c\/h3\u003e\n\u003cp\u003eUnlike generic bolts, ARP Pro Series components use premium chromoly alloy, heat treatment, and controlled thread geometry to raise tensile strength and endurance. The 12-point head allows socket engagement with less risk of rounding in cramped engine bays. Black oxide provides a thin, corrosion-resistant finish without affecting torque readings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChromoly material for higher tensile and yield strength\u003c\/li\u003e\n  \u003cli\u003e12-point head for improved tool access and reduced cam-out\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for mild corrosion protection and reduced glare\u003c\/li\u003e\n  \u003cli\u003eManufactured and inspected in the USA to ARP tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know these will fit my application?\u003c\/h3\u003e\n\u003cp\u003eFit depends on three measurable parameters: thread pitch (7\/16-20), shank\/engagement length (0.680 inches), and head style (12-point). Check your original flexplate bolts or service manual for matching thread size and required grip length before ordering. If your setup calls for a different length or thread, ARP and other suppliers offer alternate part numbers and fitment guides.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread: 7\/16-20 UNF — common on many domestic V8 flexplates\u003c\/li\u003e\n  \u003cli\u003eLength: 0.680\" — verifies correct engagement without bottoming out\u003c\/li\u003e\n  \u003cli\u003eHead style: 12-point — fits standard 12-point sockets\u003c\/li\u003e\n  \u003cli\u003eQuantity: kit includes six bolts for full flexplate installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat torque and installation practices should I use?\u003c\/h3\u003e\n\u003cp\u003eFollow ARP’s published torque or stretch guidelines for consistent clamping; hand-tightening alone is not sufficient. Use a calibrated torque wrench and thread lubricant or ARP-specified assembly product to achieve accurate clamping force. Recheck torque after initial run-in where applicable.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse specified torque values from ARP or your manual for 7\/16-20 chromoly bolts\u003c\/li\u003e\n  \u003cli\u003eApply recommended lubricant to threads to ensure consistent torque readings\u003c\/li\u003e\n  \u003cli\u003eUse proper 12-point socket to avoid rounding the head\u003c\/li\u003e\n  \u003cli\u003eInspect for correct engagement and no interference with pilot or hub surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose a Pro Series bolt instead of stock replacements?\u003c\/h3\u003e\n\u003cp\u003ePro Series hardware is designed for repeated load cycles and higher torque environments typical of performance, towing, or heavily modified engines. Where OEM bolts may be rated for standard service life, ARP’s attention to metallurgy and manufacturing control offers greater margin against fatigue and failure. This helps protect your flexplate, crank, and converter interface under demanding conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigher fatigue resistance for long-term reliability under load\u003c\/li\u003e\n  \u003cli\u003eConsistent manufacturing tolerances for repeatable torque clamping\u003c\/li\u003e\n  \u003cli\u003eGood balance of strength and corrosion resistance with black oxide\u003c\/li\u003e\n  \u003cli\u003eMade in USA quality control and traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Enthusiasts, engine builders, and technicians fitting or replacing flexplate bolts on compatible domestic powertrains who want a robust, higher-spec fastener set. Ideal for performance builds, towing rigs, or any application where stronger, precisely made bolts reduce the risk of loosening or fatigue compared with generic hardware.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these bolts compatible with Chevrolet flexplates?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Many Chevrolet flexplates use 7\/16-20 bolts; confirm required grip length (0.680\") and head style before fitting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these bolts come pre-treated for corrosion resistance?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they have a black oxide finish that offers basic corrosion protection and reduced surface glare.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":55166220009815,"sku":"B000CFQ4A8","price":36.21,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/arp-flexplate-bolt-kit-front-packaging.jpg?v=1790365287","url":"https:\/\/britishgarage.co.uk\/products\/arp-pro-series-flexplate-bolt-kit-7-16-20-x-0-680-in-12-point-chromoly-bolts-black-oxide-set-of-6","provider":"British Garage","version":"1.0","type":"link"}