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, Flat, 7/6 in. ID, 0.705 in. OD, Chromoly, Black Oxide, 0.09 in. Thick, Set of 2

ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 0.705 in. OD, Chromoly, Black Oxide, 0.09 in. Thick, Set of 2

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Manley Washer, 5/16", Kit

Manley Washer, 5/16", Kit

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ARP Washer, Insert, Washer, Insert, .250 in. Inside Diameter, .317 in. Outside Diameter, Set of 10

ARP Washer, Insert, Washer, Insert, .250 in. Inside Diameter, .317 in. Outside Diameter, Set of 10

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Trick Flow Head Bolt Washers, .510 in. I.D, .870 in. O.D, .120 in. Thick, Set of 10

Trick Flow Head Bolt Washers, .510 in. I.D, .870 in. O.D, .120 in. Thick, Set of 10

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.675 in. OD, Chromoly, Black Oxide, rod bolt washer, 0.062 in. Thick, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.675 in. OD, Chromoly, Black Oxide, rod bolt washer, 0.062 in. Thick, Each

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

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

$2.38