Universal Header Bolt Kit 5/16in wrench, 3/8in, .750in UHL Black Oxide Hex Head

Universal Header Bolt Kit 5/16in wrench, 3/8in, .750in UHL Black Oxide Hex HeadARP 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 pplication. Whats more, the compact 12 point inut lets you easily slip a socket close to the pipe. Studs are manufactured with a unique nut starter nose that helps prevent cross threading.

You will also note that ARP offers specially undercut studs forseveral engines

with handy 12-pointor standard hex heads

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

with threads rolled after heat treat to ensure the optimum fatigue strength

Specially drilled “NASCAR” models are available for those who wish to safety wire their header bolts to prevent loosening

Increased material strength overcomes valve train harmonics and stress

which makes for amore consistent clamping force – and one that compensates forhead gasket compression when the cylinder heads are installed

They’re designed to make it as easy as possible to install a pan and seal it properly

You won’t find abetter quality stud on the market from any other source

ARP studs are thread rolled after heat-treat

all ARP main bolts feature a reduced renching head

000 psi forthe 8740 material and 220