Manley hardened head bolt washers are available for a variety of applications. They receive a special heat treatment to prevent galling.

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

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

$2.49

ARP Washers, Chromoly, Black Oxide, .375 in. I.D, .720 in. O.D, Set of 10

ARP Washers, Chromoly, Black Oxide, .375 in. I.D, .720 in. O.D, Set of 10

$17.76

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

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

$8.88

ARP Washer, Hardened, High Performance, Chamfer, Flat, 3/8 in. ID, 0.655 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Each

ARP Washer, Hardened, High Performance, Chamfer, Flat, 3/8 in. ID, 0.655 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Each

$2.38