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 6610-01-168-7943
NSN 6645-00-559-3623
NSN 6135-01-205-5965
NSN 6240-01-530-2210
NSN 5965-00-520-2686
NSN 4140-01-592-5371
NSN 5998-00-808-8983
NSN 5915-01-227-5746
NSN 5905-00-399-1394
NSN 6220-01-586-9747
NSN 6145-01-058-7193
NSN 5985-01-248-2354