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 6135-01-591-7139
NSN 5965-01-315-3112
NSN 4140-01-144-3257
NSN 5975-01-178-7499
NSN 6645-01-644-5312
NSN 5998-01-137-6320
NSN 6610-00-572-1284
NSN 6240-01-578-2334
NSN 6150-00-458-3519
NSN 4140-01-325-1436
NSN 6135-00-782-6893
NSN 6135-01-375-6724