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 4140-00-740-2153
NSN 6145-00-681-3770
NSN 6620-01-118-2337
NSN 5855-00-930-2644
NSN 5965-00-910-3233
NSN 6685-01-319-2671
NSN 5855-01-398-0090
NSN 5985-01-410-3435
NSN 6240-01-280-5347
NSN 5975-01-545-5870
NSN 5915-00-203-5890
NSN 5996-00-611-2641