Part Number CSTW4 having (CAGE Code 70318) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for CSTW4 Washer Convex by Allmetal Screw Products Corp. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.