An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.
NSN 6620-01-483-1138
NSN 2925-01-458-5808
NSN 6645-01-298-1615
NSN 6610-01-465-1320
NSN 6150-01-539-9589
NSN 6650-01-407-4653
NSN 6135-01-167-7604
NSN 6135-01-424-4940
NSN 5920-01-191-5909
NSN 5910-01-056-6446
NSN 5910-01-138-8482
NSN 4140-01-254-2739