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 5895-01-554-5358
NSN 6145-00-155-5297
NSN 5999-00-236-8995
NSN 6150-00-848-0359
NSN 6320-00-149-7570
NSN 6130-01-250-9464
NSN 6105-00-872-8150
NSN 5920-01-094-7284
NSN 6130-01-418-2625
NSN 5835-01-168-6256
NSN 5920-00-905-8504
NSN 5990-00-343-4465