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 5855-00-237-4088
NSN 5999-01-218-4651
NSN 5999-00-558-7305
NSN 5910-00-871-8454
NSN 5925-01-487-6830
NSN 5950-00-243-2968
NSN 6320-00-270-8222
NSN 6685-00-758-1162
NSN 6110-00-269-2696
NSN 6220-01-476-6177
NSN 6650-01-526-8253
NSN 5895-01-307-2789