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 5920-01-083-4995
NSN 6220-01-599-0592
NSN 6610-01-530-5623
NSN 6645-00-842-4653
NSN 7035-00-513-9764
NSN 5925-00-254-4924
NSN 5895-01-634-0630
NSN 6135-01-128-5358
NSN 6240-00-533-1493
NSN 6685-01-531-5061
NSN 6240-00-008-5263
NSN 5925-01-310-8456