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 5905-00-432-3198
NSN 6105-01-392-0500
NSN 5998-01-314-4545
NSN 5960-01-044-4902
NSN 6105-00-111-0851
NSN 5915-01-143-5198
NSN 6685-01-398-0189
NSN 5935-00-846-9310
NSN 5975-00-276-3436
NSN 6220-00-457-7772
NSN 6145-01-242-1266
NSN 5920-01-634-0250