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, Hardened, High Performance, Flat, 1/2 in. ID, 1.300 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 10

ARP Washer, Hardened, High Performance, Flat, 1/2 in. ID, 1.300 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 10

$25.56

ARP Washers, Steel, Black Zinc, .438 in. Inside Diameter, .875 in. Outside Diameter, Set of 10

ARP Washers, Steel, Black Zinc, .438 in. Inside Diameter, .875 in. Outside Diameter, Set of 10

$96.01

ARP Washer, Hardened, High Performance, Chamfer, Flat, 1/4 in. ID, 0.550 in. OD, 0.075 Thick, Chromoly, Black Oxide, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 1/4 in. ID, 0.550 in. OD, 0.075 Thick, Chromoly, Black Oxide, Each

$0.56

ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.675 in. OD, Chromoly, Black Oxide, rod bolt washer, 0.062 in. Thick, Set of 10

ARP Washer, Hardened, High Performance, Chamfer, Flat, 7/6 in. ID, 0.675 in. OD, Chromoly, Black Oxide, rod bolt washer, 0.062 in. Thick, Set of 10

$18.66

ARP Washer, Hardened, High Performance, Flat, 9/16 in. ID, 1.000 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 9/16 in. ID, 1.000 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

$1.93