W/o shoulder
A headless fastener externally threaded on both ends with each threaded portion of one but not necessarily the same nominal diameter. It is designed to be locked in place by either a ring, lock, serrated or a ring, lock, keyed.
NSN 6320-01-521-1764
NSN 5950-01-436-1517
NSN 5990-00-155-2306
NSN 5999-01-098-6097
NSN 6620-01-530-7538
NSN 5910-01-160-0054
NSN 5910-01-501-5792
NSN 6620-01-374-2628
NSN 5925-00-011-7011
NSN 6130-00-912-0410
NSN 5935-01-123-6572
NSN 6650-00-315-6005