An externally threaded fastener whose threaded portion is of one nominal diameter and with a head specially designed to fit in a slot and hold against turning.
NSN 6645-00-489-3155
NSN 6620-00-494-5122
NSN 5975-01-049-5373
NSN 5910-00-615-0998
NSN 5965-01-579-0668
NSN 5915-00-991-1486
NSN 4140-01-394-3268
NSN 6645-00-166-7926
NSN 5895-01-266-5974
NSN 5935-01-014-7008
NSN 6145-00-269-4271
NSN 5999-01-306-2910