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, 1/4 in. ID, 0.550 in. OD, 0.075 Thick, Stainless Steel, Polished, Each

ARP Washer, Hardened, High Performance, Flat, 1/4 in. ID, 0.550 in. OD, 0.075 Thick, Stainless Steel, Polished, Each

$1.45

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ARP Washer, Hardened, High Performance, Flat, 5/8 in. ID, 1.300 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 5/8 in. ID, 1.300 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

$4.47

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 12mm ID, 19.1mm OD, 3mm Thick, Chromoly, Black Oxide, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 12mm ID, 19.1mm OD, 3mm Thick, Chromoly, Black Oxide, Each

$2.34

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Dart Washer, 3/8 Grd Chamfer .625 OD

Dart Washer, 3/8 Grd Chamfer .625 OD

$2.32

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ARP Washer, Hardened, High Performance, Flat, 6mm ID, 22.6mm OD, 4.2mm Thick, Chromoly, Black Oxide, Set of 10

ARP Washer, Hardened, High Performance, Flat, 6mm ID, 22.6mm OD, 4.2mm Thick, Chromoly, Black Oxide, Set of 10

$59.01

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