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 5935-01-423-8986
NSN 4140-01-121-9930
NSN 6110-00-247-0211
NSN 6685-00-883-4608
NSN 6240-00-258-2389
NSN 6145-01-458-8866
NSN 5999-00-953-5137
NSN 5985-01-532-9884
NSN 6610-01-460-2785
NSN 5935-01-290-5817
NSN 6105-01-428-7342
NSN 5920-01-368-3720