An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6110-01-568-3785
NSN 6110-00-446-6099
NSN 5996-01-331-3204
NSN 2925-00-899-4261
NSN 5985-01-576-6959
NSN 5920-01-200-6655
NSN 5835-00-660-4523
NSN 7035-01-127-0147
NSN 4140-01-039-9874
NSN 6685-01-254-0017
NSN 6135-01-187-4382
NSN 5960-01-558-7787