4-40 X 3/8 BUTTON HEAD SOCKET
4-40 X 3/8 BUTTON HEAD SOCKET BLK OX
4-40 X 3/8 BUTTON HEAD SOCKET S/S NYLOK POLY BAG
4-40 X 3/8 BUTTON HEAD SOCKET S/S BLK OX
4-40 X 3/8 BUTTON HEAD SOCKET GEN LINE
4-40 X 3/8 BUTTON HEAD SOCKET BLACK ZINC