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 4140-01-048-5472
NSN 6620-01-120-7434
NSN 6110-01-628-2068
NSN 5996-01-208-9995
NSN 5915-01-272-4182
NSN 6240-00-435-9730
NSN 5930-00-758-3066
NSN 6650-01-551-2097
NSN 5990-01-621-6969
NSN 5999-01-172-2945
NSN 6150-01-101-3809
NSN 6135-01-394-8087