An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.
NSN 6145-00-500-0756
NSN 6145-01-299-7871
NSN 5975-00-288-5877
NSN 6320-01-422-1212
NSN 6110-01-223-1386
NSN 5975-01-214-9735
NSN 6220-01-420-6512
NSN 6240-00-372-4841
NSN 6320-01-652-3806
NSN 6645-01-053-3185
NSN 4140-01-004-9177
NSN 6685-01-082-3764