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 6135-00-613-1068
NSN 6110-01-526-6129
NSN 5895-01-519-3661
NSN 5999-01-206-8826
NSN 5930-01-308-2079
NSN 5998-00-913-9669
NSN 6145-01-076-5071
NSN 6110-00-889-8114
NSN 5990-01-352-5255
NSN 5945-01-464-9840
NSN 6610-01-388-8664
NSN 5915-01-476-7124