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 2925-01-140-1015
NSN 6620-01-074-2882
NSN 6220-01-368-0475
NSN 5920-01-157-9471
NSN 5855-01-003-7102
NSN 5930-00-406-6474
NSN 5960-01-593-4760
NSN 5999-01-090-2596
NSN 4140-01-358-3417
NSN 5996-01-568-9491
NSN 5990-00-140-1159
NSN 5915-01-530-6333