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 5998-01-150-7720
NSN 6145-01-328-7991
NSN 5915-01-251-1371
NSN 5835-00-891-2232
NSN 5998-01-313-6158
NSN 6130-00-874-4578
NSN 6685-01-580-0311
NSN 6610-01-627-0642
NSN 6320-01-108-5933
NSN 6620-00-394-1812
NSN 5990-01-311-7491
NSN 6240-00-817-5388