These handy washers are made to protect the top of holes from galling or collapsing around studs or bolts. They’re ideal for head bolt holes, mid-motor plates, or any other high-wear area that requires a washer. Easy to install by just oversizing hole and pressing in washer. ARP Insert Washers are fully CNC machined from premium thru-hardened 8740 stock.

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.550 in. OD, 0.095 Thick, Chromoly, Black Oxide, Set of 2

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