3/8in 8740 Black Oxide 12-pt Nut Kit

3/8in 8740 Black Oxide 12-pt Nut KitAvailable in a variety of sizes to suit your needs, all ARP 12 point nuts are constructed from 8740 chrome moly steel or ARP Stainless, and meet ARPs highest standards of quality. Rated at 180,000 psi tensile strength, ARP 12 point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with limited space requirements. All 8740 chrome moly steel nuts are black oxide finished and all ARP

They’re offered in a variety of heights to accommodate most any combination of carb and spacer

Finish: Baked

They’re forged from premium grade 8740 chrome moly steel and are heat-treated to a nominal rating of 190

This procedureinvolves about ten very slight cuts and results in an exceptionallystraight part

wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry ofstripping the head

heat-treated prior to thread rolling and machining

When assembling a rear end

These pump drives feature a CNC milled (not broached) hex

enhancement to any carb

They are 5/16˝ wrenching and

Because of this

heat-treating to 190