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 6685-01-197-0021
NSN 6145-01-634-0388
NSN 6240-01-044-0073
NSN 5915-01-025-5820
NSN 4140-01-123-6066
NSN 6130-01-008-7938
NSN 5915-01-135-4794
NSN 5930-00-166-0361
NSN 2925-00-238-1668
NSN 6650-00-820-4577
NSN 4140-00-012-3506
NSN 5925-00-883-7673