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 7035-01-359-7460
NSN 7035-01-311-8424
NSN 5960-01-654-4353
NSN 6130-00-448-2911
NSN 5975-01-500-2490
NSN 5999-00-283-8722
NSN 5985-01-461-8380
NSN 5835-01-371-8759
NSN 5998-01-361-3468
NSN 5990-00-306-0222
NSN 5835-01-386-4027
NSN 5935-01-088-6631