Part Number 3 8-16 X 1 1 4 having (CAGE Code 9H691) and FSC 5305 Screws in stock with ready to ship. Get an instant quote for 3 8-16 X 1 1 4 Screw Cap Hexagon Head by Arlington Fastner 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.