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, 1/2 in. ID, 0.875 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 0.875 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

$4.54

View
ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Set of 10

ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Set of 10

$19.51

View
ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.625 in. OD, 0.120 Thick, Stainless Steel, Polished, Set of 10

ARP Washer, Hardened, High Performance, Chamfer, Flat, 5/16 in. ID, 0.625 in. OD, 0.120 Thick, Stainless Steel, Polished, Set of 10

$34.19

View
ARP Washer, Hardened, High Performance, Chamfer, Flat, 10mm ID, 19.1mm OD, 3mm Thick, Chromoly, Black Oxide, Set of 2

ARP Washer, Hardened, High Performance, Chamfer, Flat, 10mm ID, 19.1mm OD, 3mm Thick, Chromoly, Black Oxide, Set of 2

$4.65

View
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

View