The ARP washer is a sized fastener washer with a 7/16" inner diameter and .765" outer diameter, finished in black and supplied as a 2-pack. It provides a consistent bearing surface for bolted assemblies where exact ID/OD sizing and a no-chamfer profile are required. Use it where the fastener calls for a tight insertion tolerance and compact washer spacing during assembly or service.
ARP 7/16 ID .765 OD no chamfer black washer 2pk