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 6320-01-359-3921
NSN 2925-00-468-5273
NSN 6135-00-231-7257
NSN 4140-01-644-0927
NSN 5915-01-197-6218
NSN 6645-01-158-3592
NSN 6620-01-576-7723
NSN 6650-01-227-6032
NSN 5950-00-314-2608
NSN 5996-00-463-3972
NSN 5975-01-195-5962
NSN 6110-01-593-4710