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 5998-01-321-8473
NSN 5996-01-625-0427
NSN 5935-01-429-8569
NSN 6130-00-607-6069
NSN 6150-00-061-7860
NSN 6130-01-259-1615
NSN 6685-01-143-3599
NSN 6145-01-340-4162
NSN 6685-01-338-0867
NSN 5965-00-267-4173
NSN 6145-01-261-1940
NSN 5930-00-584-4563