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 6220-01-327-3272
NSN 2925-00-370-1238
NSN 6645-01-437-9017
NSN 5999-01-272-9684
NSN 6645-00-547-4388
NSN 5985-01-145-4673
NSN 6110-01-255-3226
NSN 5975-00-707-8036
NSN 5920-01-450-8382
NSN 5998-01-338-5302
NSN 6110-01-212-4105
NSN 6105-01-262-3057