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 5855-01-519-3814
NSN 4140-01-057-2915
NSN 5895-00-435-8209
NSN 6645-01-525-3123
NSN 5855-00-198-3197
NSN 6130-00-824-4551
NSN 6685-00-144-6362
NSN 2925-01-239-6044
NSN 5975-00-816-3681
NSN 5935-00-833-8210
NSN 5855-01-041-9392
NSN 5998-00-721-4701