{"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\/products\/m10-x-1-5-stainless-header-collector-bolt-kit-12-piece","provider":"Certified Automotive Experts","version":"1.0","type":"link"}