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 ARP'stainless 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 a socket close to the pipe. Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading. Studs and bolts come either black oxide chrome moly or polished ARP'stainless. Both are nominally rated at 180,000 psi 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.
Features
- Made from premium 300 polished stainless steel
 - Rated at 170,000 psi tensile strength.
 - Corrosion and heat-resistant
 
- Style:
 - Bolt
 - Thread Size:
 - 3/8-16 in.
 - Head Style:
 - Hex
 - Underhead Length (in.):
 - 1.000 in.
 - Underhead Length (mm):
 - 25.00mm
 - Material:
 - Stainless steel
 - Finish:
 - Polished
 - Quantity:
 - Sold as a set of 16.
 - Notes:
 - 5/16 in. wrench head size.