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, Flat, 7/6 in. ID, 0.750 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

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ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 1.300 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 10

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ARP Washer, Hardened, High Performance, Flat, 1/4 in. ID, 0.550 in. OD, 0.075 Thick, Chromoly, Black Oxide, Each

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ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 0.765 in. OD, Chromoly, Black Oxide, 0.09 in. Thick, Set of 10

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ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.750 in. OD, Chromoly, Black Oxide, 0.09 in. Thick, Set of 2

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