An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.
Dept. of the Navy 
Spain 
Australia 
Canada Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 5985-01-170-3500
NSN 5985-01-310-0279
NSN 6645-00-711-5381
NSN 5915-01-304-0518
NSN 5915-01-657-4723
NSN 6240-00-688-6351
NSN 5925-00-678-3559
NSN 6610-01-163-5484
NSN 6240-01-211-4507
NSN 6610-00-080-8839
NSN 5965-01-586-9717
NSN 6650-01-497-5782