A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
NSN 5915-01-595-2266
NSN 6240-00-803-2777
NSN 5996-01-141-6916
NSN 5999-00-205-0918
NSN 5895-01-235-3719
NSN 6110-00-460-7179
NSN 5920-01-073-3334
NSN 5895-01-010-1380
NSN 5990-01-277-9753
NSN 6610-01-385-1771
NSN 6110-01-171-7348
NSN 5975-01-086-0508