Part Number 4-40X3-8LG having (CAGE Code 41387) and FSC 5305 Screws in stock with ready to ship. Get an instant quote for 4-40X3-8LG Screw Tapping Threa by Siemens Energy And Automation Inc. 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.