Description
  • Made from premium 300 polished stainless steel
  • Rated at 170,000 psi tensile strength.
  • Corrosion and heat-resistant

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 6-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 6-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.
Specifications

Specification
StyleBolt
Thread Size3/8-16 in.
Head Style12-point
Underhead Length (in)1.000 in.
Underhead Length (mm)25.00mm
MaterialStainless steel
FinishPolished
QuantitySold as a set of 16.
Notes5/16 in. wrench head size.
Item #ARP400-1210
Mfg Part #400-1210
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