ARP 1/2-20 x 1.750 Black Oxide Bolt, Hex Head, 5-Pack

Brand: Automotive Racing Products (ARP)

These high-strength ARP bolts are great for installing most accessories. The 180,000 psi tensile strength bolts are made of 8740 chrome moly with a black oxide finish. Pack of 5 bolts includes matching washers.

These bolts have 1/2-20 UNF threads and a 1 3/4" under-head length, including the 1/2" long grip (unthreaded portion). The hex head takes a small 9/16" wrench, but has a 0.85" diameter bearing surface*. Head measures 0.45" high.

* Standard AN960-816 flat washers have a 0.875" OD.