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 5998-01-155-3465
NSN 5915-01-384-3858
NSN 6610-01-314-7964
NSN 5975-01-515-6136
NSN 5950-00-707-6107
NSN 6610-00-946-3618
NSN 5905-01-400-0516
NSN 5905-01-044-2716
NSN 6220-00-450-2175
NSN 5930-01-587-4945
NSN 6320-00-937-5625
NSN 5975-00-781-6473