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 7035-00-897-7567
NSN 5990-00-296-4825
NSN 5990-01-544-4360
NSN 5999-00-864-4992
NSN 5998-00-506-1309
NSN 5985-00-178-1143
NSN 5985-00-552-0415
NSN 4140-01-512-3270
NSN 5960-01-328-1533
NSN 5920-01-085-8374
NSN 5920-00-579-8434
NSN 6135-01-578-8642