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 4140-00-225-8586
NSN 6105-00-085-5713
NSN 6220-01-286-4249
NSN 6240-01-252-4219
NSN 6130-01-381-1713
NSN 5985-00-083-0316
NSN 6650-01-181-4073
NSN 6620-00-264-8030
NSN 5998-00-505-4303
NSN 6610-01-365-4283
NSN 5960-01-071-0389
NSN 5920-00-159-8582