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.

More From This Category

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

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

$1.79

ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.812 in. OD, 0.120 Thick, Chromoly, Black Oxide, Set of 10

ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.812 in. OD, 0.120 Thick, Chromoly, Black Oxide, Set of 10

$34.11

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

$9.12

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

$2.10

ARP Washer, Insert, Washer, Insert, .875 OD X 7/16 ID 10Pk

ARP Washer, Insert, Washer, Insert, .875 OD X 7/16 ID 10Pk

$82.68

ARP Washer, Hardened, High Performance, Chamfer, Flat, 3/8 in. ID, 0.625 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

ARP Washer, Hardened, High Performance, Chamfer, Flat, 3/8 in. ID, 0.625 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

$4.52