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, 6mm ID, 22.6mm OD, 4.2mm Thick, Stainless Steel, Polished, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 6mm ID, 22.6mm OD, 4.2mm Thick, Stainless Steel, Polished, Each

$6.92

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ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.655 in. OD, 0.075 Thick, Stainless Steel, Polished, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.655 in. OD, 0.075 Thick, Stainless Steel, Polished, Each

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ARP Washer, Hardened, High Performance, Flat, 6mm ID, 25.1mm OD, 1.7mm Thick, Chromoly, Black Oxide, Set of 2

ARP Washer, Hardened, High Performance, Flat, 6mm ID, 25.1mm OD, 1.7mm Thick, Chromoly, Black Oxide, Set of 2

$4.79

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Trick Flow Head Bolt Washers, Steel, Black Oxide, .450 in. Inside Diameter, .116 in. Thick, Set of 17

Trick Flow Head Bolt Washers, Steel, Black Oxide, .450 in. Inside Diameter, .116 in. Thick, Set of 17

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Strange ,Washer, Flat, Aluminum, Natural, .250 in. Thickness, 0.626 in I.D., Each

Strange ,Washer, Flat, Aluminum, Natural, .250 in. Thickness, 0.626 in I.D., Each

$5.16

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ARP Washer, Hardened, High Performance, Flat, 5/16 in. ID, 0.812 in. OD, 0.120 Thick, Chromoly, Black Oxide, Each

ARP Washer, Hardened, High Performance, Flat, 5/16 in. ID, 0.812 in. OD, 0.120 Thick, Chromoly, Black Oxide, Each

$1.99

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