ARP quality general purpose washers have an oversized I.D. to clear most under-bolt head radii. They're available in your choice of black oxide or rust-resistant stainless steel for 1/4, 5/16, 3/8, 7/16, and 1/2 in. shank bolts and studs. Whatever the application, these washers are sure to do the job.

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ARP Washer, 7/16ID Stainless Steel No Chamfer

ARP Washer, 7/16ID Stainless Steel No Chamfer

$3.01

ARP Washer, Hardened, High Performance, Flat, 12mm ID, 22.2mm OD, 3mm Thick, Chromoly, Black Oxide, Set of 2

ARP Washer, Hardened, High Performance, Flat, 12mm ID, 22.2mm OD, 3mm Thick, Chromoly, Black Oxide, Set of 2

$4.94

ARP Washer, Flat Washer, 0.400 in. Outer Diameter, 0.250 in. Inner Diameter, Chromoly, Black Oxide, Set of 10

ARP Washer, Flat Washer, 0.400 in. Outer Diameter, 0.250 in. Inner Diameter, Chromoly, Black Oxide, Set of 10

$16.80

ARP Washer, 5/16 ID .655 OD Stainless Steel Chamfer

ARP Washer, 5/16 ID .655 OD Stainless Steel Chamfer

$2.10

ARP Washer, Hardened, High Performance, Flat, 5/16 in. ID, 0.655 in. OD, 0.075 Thick, Chromoly, Black Oxide, Each

ARP Washer, Hardened, High Performance, Flat, 5/16 in. ID, 0.655 in. OD, 0.075 Thick, Chromoly, Black Oxide, Each

$0.88