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 Washer, Hardened, High Performance, Chamfer, Flat, 14mm ID, 39.4mm OD, 7mm Thick, Chromoly, Black Oxide, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 14mm ID, 39.4mm OD, 7mm Thick, Chromoly, Black Oxide, Each

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ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Set of 2

ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Set of 2

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.812 in. OD, Stainless Steel, Polished, 0.12 in. Thick, Set of 2

ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.812 in. OD, Stainless Steel, Polished, 0.12 in. Thick, Set of 2

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 9mm ID, 20.6mm OD, 3mm Thick, Chromoly, Black Oxide, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 9mm ID, 20.6mm OD, 3mm Thick, Chromoly, Black Oxide, Each

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ARP Washer, Insert, Washer, Insert, Chromoly, Black Oxide, .500 in. I.D, .567 in. O.D, Each

ARP Washer, Insert, Washer, Insert, Chromoly, Black Oxide, .500 in. I.D, .567 in. O.D, Each

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