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 5985-01-174-8941
NSN 5965-01-469-7401
NSN 6110-01-202-8009
NSN 7035-01-102-8111
NSN 5835-01-618-1225
NSN 6240-01-220-6066
NSN 6110-01-352-6438
NSN 6610-01-171-0849
NSN 6135-01-187-4382
NSN 5950-01-625-5971
NSN 5945-00-936-3360
NSN 6650-01-505-2517