MS51870, MILITARY STANDARD, SCREW, TAPPING-HIGH PERFORMANCE, THREAD ROLLING, TYPES SF, SW AND TT, FLAT COUNTERSUNK HEAD, CROSS- RECESSED (29 SEP 1972) [S/S BY NASM51870]

MS51870, MILITARY STANDARD, SCREW, TAPPING-HIGH PERFORMANCE, THREAD ROLLING, TYPES SF, SW AND TT, FLAT COUNTERSUNK HEAD, CROSS- RECESSED (29 SEP 1972) [S/S BY NASM51870].