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 5999-01-478-7741
NSN 6610-00-007-6832
NSN 6610-00-053-8213
NSN 5855-00-189-6066
NSN 5950-00-928-8212
NSN 6105-00-773-8480
NSN 5920-01-035-5456
NSN 6620-01-645-1777
NSN 6645-01-528-5337
NSN 6220-01-533-4170
NSN 5855-01-177-4751
NSN 5990-00-087-3102