A headed externally threaded fastener whose threaded portion is of one nominal diameter having two or more fins extending from the head to the shank.
NSN 6650-00-067-3572
NSN 5920-01-218-1733
NSN 5945-01-522-4593
NSN 6620-00-342-9843
NSN 5835-01-263-1293
NSN 5996-00-342-9246
NSN 5910-00-307-4742
NSN 6220-00-594-8817
NSN 6650-01-456-0747
NSN 6240-01-460-2097
NSN 5999-01-009-1503
NSN 6135-01-422-1440