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, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Each

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

$1.95

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 10mm ID, 15mm OD, 2mm Thick, Chromoly, Black Oxide, Set of 2

ARP Washer, Hardened, High Performance, Chamfer, Flat, 10mm ID, 15mm OD, 2mm Thick, Chromoly, Black Oxide, Set of 2

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ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 0.875 in. OD, Cad Plated, 0.063 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 0.875 in. OD, Cad Plated, 0.063 in. Thick, Each

$0.74

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

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

$2.87

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ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.715 in. OD, Stainless Steel, Polished, 0.12 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.715 in. OD, Stainless Steel, Polished, 0.12 in. Thick, Each

$2.91

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ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 2.000 in. OD, Chromoly, Black Oxide, 0.275 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 2.000 in. OD, Chromoly, Black Oxide, 0.275 in. Thick, Each

$21.00

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