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 5965-00-554-4138
NSN 6240-00-172-8451
NSN 6150-01-574-6786
NSN 5950-01-309-7404
NSN 6645-01-165-3785
NSN 6650-01-300-8230
NSN 6220-01-062-2077
NSN 5996-00-524-0204
NSN 5855-01-258-6180
NSN 6145-01-447-4860
NSN 6685-01-524-0229
NSN 5965-01-385-1886