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, Chamfer, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Each

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

$2.38

ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 0.995 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

ARP Washer, Hardened, High Performance, Flat, 7/6 in. ID, 0.995 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Set of 2

$3.61

ARP Washer, Hardened, High Performance, Flat, 10mm ID, 21.6mm OD, 3mm Thick, Chromoly, Black Oxide, Set of 10

ARP Washer, Hardened, High Performance, Flat, 10mm ID, 21.6mm OD, 3mm Thick, Chromoly, Black Oxide, Set of 10

$21.24

Trick Flow Head Bolt Washers, .510 in. I.D, .870 in. O.D, .120 in. Thick, Set of 20

Trick Flow Head Bolt Washers, .510 in. I.D, .870 in. O.D, .120 in. Thick, Set of 20

$52.35

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

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

$1.93