4-40X3/8 6 Lobe Flat U/C Thread Rolling Screws Thread Rolling Screw Full Thread Zinc Wax (Pack Qty 10,000) BC-0406RTU

PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. Designed to be inserted into a like-sized, hollow recess of a socket screw to manually tighten or loosen the fastener. Alloy steel containing at least two of the following elements: chromium, nickel, molybdenum or vanadium, in sufficient quantity to assure that the minimum surface hardness meets the standards listed below.