MS51494, MILITARY STANDARD: SCREW, EXTERNALLY RELIEVED BODY, FLAT COUNTERSUNK HEAD, 100 DEGREE, CROSS-RECESSED (10 JUL 1984).
MS51494, MILITARY STANDARD: SCREW, EXTERNALLY RELIEVED BODY, FLAT COUNTERSUNK HEAD, 100 DEGREE, CROSS-RECESSED (10 JUL 1984).