ARP SAE Bolt 5-Packs, 5/16-18 UNC, Black Oxide Finish

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. All bolts are packaged in sets of 5 bolts with matching washers.

These bolts all have a 5/16-18 UNC thread pitch with a 1" thread length on all sizes longer than 1 1/4" (sizes shorter than 1 1/2" have a fully-threaded shank). The flange head (hex or 12-point) takes a 3/8" wrench but has a full 5/8" OD bearing surface. Black oxide finish looks great and will accept paint with minimal prep work.

5/16-18 UNC is the size used to mount many accessories on the FF1600 engine, including intake, exhaust, motor mounts, and more.