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The ARP washer kit provides precision washers designed to distribute fastener load and protect mating surfaces. These washers have a 5/16" inner diameter and a 0.655" outer diameter with a chamfered edge for beveled seating. Their profile helps ensure consistent contact under bolt heads or nuts where a chamfered washer is preferred for angled or countersunk seating.
ARP 5/16ID .655 OD chamfer washers
