MS21099 (NOTICE 1), MILITARY STANDARD: BOLT, SELF LOCKING, CORROSION RESISTING STEEL, 80 KSI FTU, 250 DEG. F, 12-POINT, EXTERNAL WRENCHING (EXTERNALLY WRENCHING CAP SCREWS) (32 SEP 1991)

MS21099 (NOTICE 1), MILITARY STANDARD: BOLT, SELF LOCKING, CORROSION RESISTING STEEL, 80 KSI FTU, 250 DEG. F, 12-POINT, EXTERNAL WRENCHING (EXTERNALLY WRENCHING CAP SCREWS) (23 SEP 1991).