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 6645-00-690-0423
NSN 5999-00-738-3415
NSN 5975-01-262-7330
NSN 5996-01-461-8897
NSN 5930-01-184-4445
NSN 5910-01-196-5110
NSN 5950-01-287-8256
NSN 5855-01-505-9158
NSN 5915-01-641-6139
NSN 5990-01-423-2219
NSN 5895-00-932-1577
NSN 6685-01-381-0759