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 6620-01-181-1757
NSN 5945-00-157-5404
NSN 7035-01-657-3875
NSN 6105-01-497-1459
NSN 5855-01-266-1645
NSN 5990-01-200-5895
NSN 6320-01-583-6809
NSN 6650-01-140-4463
NSN 2925-01-614-0087
NSN 5999-01-442-9578
NSN 6620-00-542-0529
NSN 6220-01-221-2705