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 4140-01-431-6560
NSN 5895-01-624-3229
NSN 6610-01-359-5515
NSN 5985-01-537-0318
NSN 6645-00-754-4108
NSN 5990-00-804-4982
NSN 6135-01-400-2947
NSN 6220-00-910-0320
NSN 6135-01-384-7155
NSN 5950-00-293-9931
NSN 6150-01-611-3826
NSN 5996-01-292-5285