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 6650-01-006-1526
NSN 5835-00-419-0575
NSN 2925-01-180-9264
NSN 6105-01-330-0675
NSN 6110-01-168-8077
NSN 5950-01-252-0250
NSN 5915-00-473-2112
NSN 6620-01-052-2773
NSN 5925-00-754-7627
NSN 5999-00-398-1583
NSN 5945-01-415-5835
NSN 5910-01-253-1822