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 5910-00-462-4019
NSN 5975-01-101-9469
NSN 6685-01-151-5408
NSN 6240-01-633-9357
NSN 6130-01-172-3734
NSN 5905-01-045-2860
NSN 6620-01-144-8609
NSN 6620-00-079-0311
NSN 6145-01-367-6929
NSN 6130-01-151-1397
NSN 5920-01-092-9400
NSN 5895-01-415-8947