4-40 X 1/4 BUTTON HEAD SOCKET F/T
4-40 X 1/4 BUTTON HEAD SOCKET 316 S/S
4-40 X 1/4 BUTTON HEAD SOCKET S/S
4-40 X 1/4 BUTTON HEAD SOCKET GEN LINE
4-40 X 1/4 BUTTON HEAD SOCKET STRIP-LOK