A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
NSN 5990-01-152-3974
NSN 5925-00-732-7530
NSN 5915-01-425-2303
NSN 5996-01-217-1407
NSN 5985-01-194-9803
NSN 5920-01-559-2658
NSN 6610-01-014-3964
NSN 5960-01-137-2329
NSN 5905-00-156-6354
NSN 6650-00-177-6390
NSN 4140-00-442-6373
NSN 6110-01-352-1922