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 5950-00-929-2930
NSN 7035-01-539-1600
NSN 5975-01-530-6162
NSN 5945-01-128-5739
NSN 6645-01-449-0785
NSN 6145-00-220-9933
NSN 5998-01-158-6067
NSN 6135-01-442-7275
NSN 6105-00-149-7956
NSN 5920-01-312-1538
NSN 4140-01-278-6709
NSN 6220-01-647-3118