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 5935-00-753-7895
NSN 6220-01-265-8650
NSN 5920-00-119-1406
NSN 6610-01-518-1264
NSN 5985-01-099-6011
NSN 6135-01-546-4588
NSN 5915-01-616-9739
NSN 5925-01-298-6328
NSN 5945-00-943-4151
NSN 5945-01-421-4135
NSN 2925-01-434-6945
NSN 5925-01-197-2586