AN530 (REV. 6), MILITARY STANDARD: SCREW, TAPPING, THREAD FORMING OR THREAD CUTTING, ROUND HEAD, SPACED THD (17-FEB-1959) [S/S BY MS51861]
AN530 (REV. 6), MILITARY STANDARD: SCREW, TAPPING, THREAD FORMING OR THREAD CUTTING, ROUND HEAD, SPACED THD (17-FEB-1959) [S/S BY MS51861].