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 6645-00-241-3280
NSN 6650-00-515-6002
NSN 6240-01-414-3873
NSN 6150-01-320-1525
NSN 6320-01-450-7083
NSN 4140-01-459-7229
NSN 6130-01-517-0583
NSN 4140-01-311-9755
NSN 5855-01-356-2759
NSN 6240-00-774-6116
NSN 6220-01-262-9167
NSN 5920-01-598-5172