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 5998-01-258-2062
NSN 5998-01-620-9379
NSN 2925-00-343-3235
NSN 6220-01-417-2675
NSN 5996-00-067-5219
NSN 6130-01-168-8001
NSN 5965-01-182-5768
NSN 5925-01-585-0169
NSN 6150-01-192-1127
NSN 4140-01-215-1125
NSN 2925-01-253-6006
NSN 5985-01-338-3416