MIL-S-63540C, MILITARY SPECIFICATION: STUD, SELF-CLINCHING, GENERAL SPECIFICATION FOR (27 JUN 1995) [S/S BY NASM63540]

MIL-S-63540C, MILITARY SPECIFICATION: STUD, SELF-CLINCHING, GENERAL SPECIFICATION FOR (27 JUN 1995) [S/S BY NASM63540]., This specification covers the requirements for self-clinching studs, which are permanently attached to a structure by embedding them into the structure. Push-out, pull-out resistance results from cold flow of the structural material into recesses or grooves provided beneath the head of the stud.