MIL-S-21472B, MILITARY SPECIFICATION: SCREW, SHOULDER, HEXAGON SOCKET-HEAD AND SLOTTED-HEAD GENERAL SPECIFICATION FOR (05-OCT-1971) [S/S BY NASM21472]
MIL-S-21472B, MILITARY SPECIFICATION: SCREW, SHOULDER, HEXAGON SOCKET-HEAD AND SLOTTED-HEAD GENERAL SPECIFICATION FOR (05-OCT-1971) [S/S BY NASM21472]., This specification
covers hexagaon slotted-head shoulder screws and socket-head shoulder screws.