Part Number 18615R1 having (CAGE Code 29930) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for 18615R1 Nut Self Locking Hexagon by International Harvester Co. 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.