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 5996-01-538-4642
NSN 6220-01-399-8586
NSN 5925-01-578-6869
NSN 5855-01-302-5493
NSN 5905-00-085-0598
NSN 6320-01-341-7986
NSN 5855-01-520-4985
NSN 4140-01-226-9670
NSN 6650-00-170-5095
NSN 5915-01-018-2775
NSN 5975-01-094-6806
NSN 4140-01-548-4906