Part Number 22-1239-01-01 ITEM NO. 4 having (CAGE Code 3BU57) and FSC 5305 Screws in stock with ready to ship. Get an instant quote for 22-1239-01-01 ITEM NO. 4 Screw Shoulder by Gk Engineering 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.