A hardened cylindrical fastener with multiple spiral flutes on its shank. It also has an end smaller in diameter than the outside diameter of the spiral flutes, which acts as a pilot when driven into a drilled hole.
NSN 5998-00-809-7863
NSN 6650-00-021-2467
NSN 6220-00-942-2678
NSN 5910-01-192-9090
NSN 6105-01-041-8698
NSN 5999-01-060-8251
NSN 5905-01-566-0943
NSN 6240-01-437-6888
NSN 5996-01-528-7850
NSN 5945-01-212-9604
NSN 5945-01-366-0298
NSN 5910-00-626-2344