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ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application. What's more, the compact 12 point nut lets you easily slip on a socket close to the pipe. Each ARP stud or bolt kit includes the specific number of parts for your application, plus premium quality washers and hex or 12 point nuts as required. Studs are manufactured with a unique starter nose that helps prevent cross threading. Studs and bolts come either black oxide chrome-moly or stainless 300. Both are nominally rated at 170,000 p.s.i. tensile strength; Substantially stronger than grade 8 hardware. Specially drilled "NASCAR" models are available for those who wish to safety wire their header bolts to prevent loosening.
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