{"title":"Bolt Kits","description":null,"products":[{"product_id":"header-bolts-chrome-set-of-12-for-small-block-and-big-block-american-v8-engines-3-8-16-thread-corrosion-resistant-alloy-steel-for-chevy-ford-mopar-muscle-cars-hot-rods-restoration","title":"Header Bolts Chrome Set of 12 for Small Block and Big Block American V8 Engines 3\/8-16 Thread Corrosion Resistant Alloy Steel for Chevy Ford Mopar Muscle Cars Hot Rods Restoration","description":"\u003ctable class=\"a-normal a-spacing-micro\" role=\"list\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"a-spacing-small po-manufacturer_grade\" role=\"listitem\"\u003e\n\u003ctd class=\"a-span3\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base a-text-bold\"\u003eManufacturer Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"a-span9\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base po-break-word\"\u003eAutomotive Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"a-spacing-small po-head.style\" role=\"listitem\"\u003e\n\u003ctd class=\"a-span3\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base a-text-bold\"\u003eHead Style\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"a-span9\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base po-break-word\"\u003eFlat\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"a-spacing-small po-fastener.type\" role=\"listitem\"\u003e\n\u003ctd class=\"a-span3\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base a-text-bold\"\u003eFastener Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"a-span9\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base po-break-word\"\u003eHexagon Bolt\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"a-spacing-small po-brand\" role=\"listitem\"\u003e\n\u003ctd class=\"a-span3\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base a-text-bold\"\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"a-span9\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base po-break-word\"\u003eCertified Automotive Experts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"a-spacing-small po-thread.type\" role=\"listitem\"\u003e\n\u003ctd class=\"a-span3\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base a-text-bold\"\u003eThread Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"a-span9\" role=\"presentation\"\u003e\u003cspan class=\"a-size-base po-break-word\"\u003eRight Hand\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1 class=\"a-size-base-plus a-text-bold\"\u003eAbout this item\u003c\/h1\u003e\n\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eENGINEERED FOR AMERICAN V8 POWER — Designed to fit classic and high-performance Chevy, Ford, and Mopar engines using 3\/8\"-16 standard thread bolts. Ideal for small block and big block configurations. Perfect fit for muscle cars, restorations, street rods, and aftermarket headers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eFITS MANY POPULAR APPLICATIONS — Compatible with small block Chevy 265–400, big block 396–454, Ford Windsor 260–351W, Cleveland, FE, and 385-Series, Mopar LA 273–360, B\/RB 383–440, and 426 HEMI. See chart for exact engine compatibility and quantity required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eCORROSION-RESISTANT ALLOY STEEL — Made from corrosion-resistant steel alloy with a show-quality polished finish. Delivers lasting durability and shine in high-heat, high-vibration engine environments.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eGRADE 5 PERFORMANCE YOU CAN TRUST — These header bolts offer balanced tensile strength and reliability, ideal for sealing aftermarket headers to iron cylinder heads without stretching or loosening over time.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eINCLUDES 12 BOLTS PER PACK — Each set contains 12 bolts (3\/8\"-16 thread), enough for most small block engines. Certain big block and specialty heads may require 14 or 16 bolts — order two packs for full coverage.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Certified Automotive Experts","offers":[{"title":"Default Title","offer_id":51389080731970,"sku":"HBS-12","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/1_1a522e83-c804-47a9-8599-1203e300e259.jpg?v=1760038660"},{"product_id":"header-bolts-chrome-set-of-12-for-small-block-and-big-block-american-v8-engines","title":"Chrome Header Bolts Set of 12 – 3\/8-16 for Small \u0026 Big Block V8","description":"\u003ch2\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/HBS-12.png?v=1785817643\" alt=\"\"\u003e\u003c\/h2\u003e\n\u003cp\u003eUpgrade your exhaust system installation with this 12-piece Chrome Header Bolts Set, designed to provide reliable clamping strength, heat resistance, and a clean finished appearance. Made from corrosion-resistant alloy steel with a polished chrome-style finish, these header bolts are built for demanding automotive applications while adding a classic look to the engine bay.\u003c\/p\u003e\n\u003cp\u003eDesigned for aftermarket exhaust headers and compatible iron cylinder heads, these header bolts are suitable for a wide range of classic American V8 engines. The 3\/8-16 thread size makes them a practical choice for many popular Chevy, Ford, and Mopar small block and big block applications.\u003c\/p\u003e\n\u003cp\u003eThese Chrome Header Bolts are ideal for muscle cars, classic cars, hot rods, street machines, trucks, and restoration projects. Whether you're replacing worn header hardware or completing a fresh engine build, this set provides dependable fastening performance with a polished appearance.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e12-piece Chrome Header Bolts Set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCorrosion-resistant alloy steel construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePolished chrome-style finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3\/8-16 thread\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for exhaust header installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for aftermarket headers and iron cylinder heads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides reliable clamping strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeat-resistant design for exhaust applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eClassic appearance for a clean engine-bay finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for muscle cars, hot rods, trucks, and restoration projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEngine Compatibility\u003c\/p\u003e\n\u003cp\u003eThese header bolts are compatible with a wide range of popular American V8 engines, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eChevy Small Block V8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChevy Big Block V8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFord Windsor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFord Cleveland\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFord FE Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFord 385 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFord 460\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMopar LA Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMopar B\/RB Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMopar 426 HEMI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat's Included\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e12 Chrome Header Bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e6 bolts per side\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImportant Fitment Information\u003c\/p\u003e\n\u003cp\u003eMost small block engines can use a single 12-piece set, with 6 bolts per side. Some applications require 12–16 header bolts depending on the cylinder head and header configuration.\u003c\/p\u003e\n\u003cp\u003eFord 460, Ford FE-series, and Mopar B\/RB applications may require additional hardware. For these applications, purchasing two sets may be recommended.\u003c\/p\u003e\n\u003cp\u003eWhy Choose These Chrome Header Bolts?\u003c\/p\u003e\n\u003cp\u003eHeader bolts are an important part of any exhaust header installation. The right hardware helps maintain proper clamping pressure and secure the headers against the cylinder heads. These Chrome Header Bolts combine durable alloy steel construction with a polished finish, making them suitable for both performance builds and appearance-focused restorations.\u003c\/p\u003e\n\u003cp\u003eThey are an excellent upgrade for enthusiasts who want dependable header hardware without sacrificing the classic chrome look. From muscle cars and hot rods to classic trucks and restoration projects, this header bolt set provides a practical combination of strength, functionality, and style.\u003c\/p\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: What size are these header bolts?\u003c\/p\u003e\n\u003cp\u003eA: These header bolts use a 3\/8-16 thread size.\u003c\/p\u003e\n\u003cp\u003eQ: How many bolts are included?\u003c\/p\u003e\n\u003cp\u003eA: The set includes 12 header bolts, with 6 bolts per side.\u003c\/p\u003e\n\u003cp\u003eQ: What are these header bolts made from?\u003c\/p\u003e\n\u003cp\u003eA: They are made from corrosion-resistant alloy steel with a polished chrome-style finish.\u003c\/p\u003e\n\u003cp\u003eQ: What engines do these header bolts fit?\u003c\/p\u003e\n\u003cp\u003eA: They are designed for various American V8 applications, including Chevy Small Block and Big Block, Ford Windsor, Cleveland, FE and 385 Series engines, as well as Mopar LA, B\/RB, and 426 HEMI configurations.\u003c\/p\u003e\n\u003cp\u003eQ: Are these suitable for aftermarket exhaust headers?\u003c\/p\u003e\n\u003cp\u003eA: Yes. These bolts are designed for use with aftermarket headers and compatible iron cylinder heads.\u003c\/p\u003e\n\u003cp\u003eQ: Can I use these bolts on a Ford 460?\u003c\/p\u003e\n\u003cp\u003eA: Ford 460 applications may require more than 12 bolts. Purchasing two sets is recommended when the application requires additional header hardware.\u003c\/p\u003e\n\u003cp\u003eQ: Are these header bolts suitable for classic cars?\u003c\/p\u003e\n\u003cp\u003eA: Yes. They are suitable for muscle cars, classic cars, hot rods, street machines, trucks, and restoration projects.\u003c\/p\u003e\n\u003cp\u003eQ: Do these header bolts resist corrosion?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The alloy steel construction and polished chrome-style finish provide corrosion resistance and a clean appearance.\u003c\/p\u003e\n\u003cp\u003eQ: Are these bolts suitable for both small block and big block engines?\u003c\/p\u003e\n\u003cp\u003eA: Yes, they are designed for a wide range of compatible Small Block and Big Block American V8 applications. Always verify your specific header and cylinder-head requirements before ordering.\u003c\/p\u003e","brand":"Certified Automotive Experts","offers":[{"title":"Default Title","offer_id":51834128957762,"sku":"HBS-12","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/Chrome_Header_Bolts_Set_of_12.png?v=1786707584"},{"product_id":"stainless-header-bolt-kit-ls-engines","title":"Stainless Header Bolt Kit – LS Engines","description":"\u003cp\u003eUpgrade Your LS Exhaust System with the CAE LS Exhaust Header Manifold Bolt Kit. This 12-piece set is made from premium 304 stainless steel for maximum strength, heat resistance, and durability. Designed to fit GM LS series engines, these bolts provide reliable fastening for both OEM manifolds and aftermarket headers. Compatible with 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines, they are perfect for stock replacements, header installations, and LS engine builds. Each bolt features a hex flange head design for a secure, leak-resistant installation without the need for additional washers. Built for long-term performance, CAE header bolts offer excellent corrosion resistance and a precision fit for your exhaust system needs\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/B0F6NGRN24.png?v=1789019652\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Certified Automotive Experts","offers":[{"title":"Default Title","offer_id":52319717884226,"sku":"CAE-BOLT-LS-12SS","price":19.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/80c0de07-fde3-4fd8-8684-a1918db4f884.jpg?v=1773704232"},{"product_id":"m10-x-1-5-stainless-header-collector-bolt-kit-12-piece","title":"M10 x 1.5 Stainless Header Collector Bolt Kit – 12-Piece","description":"\u003ch1\u003eStainless Steel Header Collector Bolt Kit – M10 x 1.5 x 40mm, 12-Piece\u003c\/h1\u003e\n\u003cp\u003eUpgrade your exhaust installation with the \u003cstrong\u003eCertified Automotive Experts Stainless Steel Header Collector Hardware Kit\u003c\/strong\u003e, designed for secure and reliable connections between exhaust header collector flanges. This complete \u003cstrong\u003e12-piece exhaust header bolt kit\u003c\/strong\u003e includes six M10 x 1.5 x 40mm serrated flange bolts and six matching M10 x 1.5 serrated flange nuts, all manufactured from durable \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDesigned for demanding automotive environments, these stainless steel exhaust fasteners provide excellent corrosion resistance and long-term durability compared with conventional zinc-plated hardware. The serrated flange design helps resist loosening caused by engine vibration, road impacts, and repeated exhaust heat cycles, making this kit a practical choice for performance exhaust systems and custom fabrication.\u003c\/p\u003e\n\u003cp\u003eThe integrated flange on each fastener helps distribute clamping force across the collector flange surface while eliminating the need for separate washers. With \u003cstrong\u003esix bolts and six matching nuts\u003c\/strong\u003e, this kit provides enough hardware for \u003cstrong\u003etwo 3-bolt header collector flanges\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eComplete \u003cstrong\u003e12-piece exhaust header collector hardware kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes \u003cstrong\u003e6 M10 x 1.5 x 40mm serrated flange bolts\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes \u003cstrong\u003e6 M10 x 1.5 serrated flange nuts\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMade from corrosion-resistant \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA2-70 stainless steel specification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSerrated flange design helps resist loosening from vibration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWide flange distributes clamping force across the collector flange\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated flange eliminates the need for separate washers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for repeated exhaust heat cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003etwo 3-bolt collector flanges\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for new exhaust installations, repairs, and custom fabrication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e304 Stainless Steel Construction\u003c\/h2\u003e\n\u003cp\u003eThese header collector bolts and nuts are manufactured from \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e, providing excellent resistance to corrosion in automotive environments exposed to heat, moisture, road debris, and changing temperatures.\u003c\/p\u003e\n\u003cp\u003eCompared with conventional zinc-plated hardware, stainless steel provides a durable solution for exhaust applications where long-term exposure to heat and moisture can cause ordinary fasteners to deteriorate.\u003c\/p\u003e\n\u003ch2\u003eSerrated Flange Design\u003c\/h2\u003e\n\u003cp\u003eThe serrated flange surfaces are designed to provide additional resistance against fastener loosening.\u003c\/p\u003e\n\u003cp\u003eExhaust systems experience constant vibration and repeated thermal expansion and contraction. The serrated flange design helps maintain a secure connection during these conditions while the integrated flange distributes clamping pressure across the collector flange.\u003c\/p\u003e\n\u003cp\u003eThe flange also means you don't need to install separate washers with these fasteners.\u003c\/p\u003e\n\u003ch2\u003eIdeal for Custom Exhaust Applications\u003c\/h2\u003e\n\u003cp\u003eThis stainless steel header collector hardware kit is suitable for a wide range of automotive exhaust applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eExhaust header collector flanges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3-bolt header collectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eY-pipe connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCustom exhaust fabrication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePerformance exhaust systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExhaust repairs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStreet cars\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHot rods\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMuscle cars\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eClassic cars and trucks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOff-road vehicles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRacing and competition applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEngine swap projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's Included?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e12-piece complete hardware kit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e6 × M10 x 1.5 x 40mm 304 stainless steel serrated flange bolts\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e6 × M10 x 1.5 304 stainless steel serrated flange nuts\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe quantity is designed to provide hardware for \u003cstrong\u003etwo 3-bolt exhaust collector flanges\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eExhaust Header Collector Hardware Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e12 Pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt Quantity\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut Quantity\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003eM10 x 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt Length\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHex Size\u003c\/td\u003e\n\u003ctd\u003e15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Grade\u003c\/td\u003e\n\u003ctd\u003eA2-70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt Standard\u003c\/td\u003e\n\u003ctd\u003eGB5789\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut Standard\u003c\/td\u003e\n\u003ctd\u003eDIN6923\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Type\u003c\/td\u003e\n\u003ctd\u003eSerrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eExhaust Header Collector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned For\u003c\/td\u003e\n\u003ctd\u003eTwo 3-Bolt Collector Flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhy Use Stainless Steel Header Collector Hardware?\u003c\/h2\u003e\n\u003cp\u003eHeader collector fasteners operate in a demanding environment where high temperatures, vibration, moisture, and road conditions can affect conventional hardware.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e304 stainless steel exhaust bolt and nut kit\u003c\/strong\u003e provides a durable fastening solution while the serrated flange design helps reduce the chance of loosening during repeated driving and exhaust heat cycles.\u003c\/p\u003e\n\u003cp\u003eFor builders installing new headers, repairing an existing exhaust system, or fabricating a custom exhaust, having the correct matching collector hardware can make installation faster and more reliable.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eBefore installation, verify that your header collector flanges are compatible with \u003cstrong\u003eM10 x 1.5 fasteners\u003c\/strong\u003e and that the 40mm bolt length is appropriate for your application.\u003c\/p\u003e\n\u003cp\u003eAlways follow the header manufacturer's recommended installation procedure and torque specifications. Inspect the collector flange and fasteners before installation to ensure all mating surfaces are clean and properly aligned.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional installation is recommended when working on custom or performance exhaust systems.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat size are these header collector bolts?\u003c\/h3\u003e\n\u003cp\u003eThe bolts are \u003cstrong\u003eM10 x 1.5 x 40mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow many bolts and nuts are included?\u003c\/h3\u003e\n\u003cp\u003eThe kit contains \u003cstrong\u003e6 bolts and 6 matching nuts\u003c\/strong\u003e, for a total of \u003cstrong\u003e12 pieces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat material are the fasteners made from?\u003c\/h3\u003e\n\u003cp\u003eBoth the bolts and nuts are made from \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e, specified as A2-70.\u003c\/p\u003e\n\u003ch3\u003eHow many collector flanges can this kit cover?\u003c\/h3\u003e\n\u003cp\u003eThe six bolts and six nuts are designed to provide hardware for \u003cstrong\u003etwo 3-bolt header collector flanges\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDo the bolts have serrated flanges?\u003c\/h3\u003e\n\u003cp\u003eYes. The bolts feature \u003cstrong\u003eserrated flange surfaces\u003c\/strong\u003e designed to help resist loosening from vibration and repeated exhaust heat cycles.\u003c\/p\u003e\n\u003ch3\u003eAre washers included?\u003c\/h3\u003e\n\u003cp\u003eSeparate washers are not required because the bolts and nuts feature integrated flange surfaces designed to distribute clamping force.\u003c\/p\u003e\n\u003ch3\u003eWhat can these bolts be used for?\u003c\/h3\u003e\n\u003cp\u003eThey are suitable for \u003cstrong\u003eheader collector flanges, Y-pipe connections, custom exhaust fabrication, performance exhaust systems, exhaust repairs, and other compatible automotive applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAre these bolts universal?\u003c\/h3\u003e\n\u003cp\u003eThey are not vehicle-specific, but you should verify the required \u003cstrong\u003eM10 x 1.5 thread size, bolt length, flange clearance, and application requirements\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003euniversal exhaust hardware kit\u003c\/strong\u003e, not a vehicle-specific component.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, confirm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eYour collector uses M10 x 1.5 fasteners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e40mm bolt length is suitable for your flange thickness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe 15mm hex size has adequate installation clearance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe flange and nut dimensions are compatible with your exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAnswer-First Product Summary\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is this product?\u003c\/strong\u003e\u003cbr\u003eThis is a \u003cstrong\u003e12-piece stainless steel exhaust header collector hardware kit\u003c\/strong\u003e containing six M10 x 1.5 x 40mm serrated flange bolts and six matching M10 x 1.5 serrated flange nuts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is it used for?\u003c\/strong\u003e\u003cbr\u003eIt is designed for securing compatible \u003cstrong\u003eexhaust header collector flanges\u003c\/strong\u003e, including two 3-bolt collector connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat material is it made from?\u003c\/strong\u003e\u003cbr\u003eThe bolts and nuts are manufactured from \u003cstrong\u003e304 stainless steel (A2-70)\u003c\/strong\u003e for corrosion resistance and durability in demanding automotive environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include enough hardware for two 3-bolt collectors?\u003c\/strong\u003e\u003cbr\u003eYes. The kit includes \u003cstrong\u003esix bolts and six nuts\u003c\/strong\u003e, providing hardware for two 3-bolt collector flanges.\u003c\/p\u003e","brand":"Certified Automotive Experts","offers":[{"title":"Default Title","offer_id":55942571360578,"sku":"CAE–6PC-M10x40-BOLT","price":150.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/4664\/2498\/files\/M10_x_1.5_Stainless_Header_Collector_Bolt_Kit_12-Piece.jpg?v=1787570048"}],"url":"https:\/\/certifiedautomotiveexperts.com\/collections\/bolt-kits.oembed","provider":"Certified Automotive Experts","version":"1.0","type":"link"}