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 6610-01-433-7899
NSN 7035-01-323-0164
NSN 6650-00-527-7451
NSN 5998-01-208-7906
NSN 5855-01-147-4785
NSN 5925-01-417-9170
NSN 5990-01-168-6797
NSN 4140-01-445-5945
NSN 4140-01-414-1710
NSN 6130-01-551-6271
NSN 5965-00-194-9428
NSN 5905-01-616-9727