A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
NSN 6135-01-312-1040
NSN 6110-00-054-2527
NSN 5930-01-243-5178
NSN 5915-01-073-8101
NSN 5996-01-052-4027
NSN 7035-01-450-6795
NSN 5985-00-566-5815
NSN 5920-00-051-8277
NSN 6150-01-275-5363
NSN 5930-01-245-3788
NSN 5915-01-352-5871
NSN 5855-00-089-3974