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The ARP washer kit provides precision washers to distribute fastener clamp load and protect contact surfaces. These washers feature a 5/16" inner diameter and a 0.655" outer diameter with a chamfered edge for beveled seating. They are intended for installations where a chamfered seating face improves alignment beneath bolt heads or countersunk fasteners.
ARP 5/16ID .655 OD chamfer washers
