ARP insert washers are designed to protect the top of the bolt holes from galling or collapsing around studs or bolts. They are fully CNC-machined from premium through-hardened 8740 stock.

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ARP Washers, Chromoly, Black Oxide, .437 in. I.D, .812 in. O.D, Individual

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ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 0.812 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.750 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

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