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 5905-01-422-1670
NSN 4140-01-307-3143
NSN 5975-00-937-2344
NSN 6135-00-221-4720
NSN 5985-01-254-6293
NSN 6620-01-116-3983
NSN 6685-01-475-8409
NSN 5855-01-388-2424
NSN 6105-00-707-7498
NSN 6645-01-375-7401
NSN 5960-00-797-2280
NSN 5930-01-239-5810