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 6145-01-132-4136
NSN 4140-01-068-3500
NSN 6645-01-571-6404
NSN 6150-01-570-5230
NSN 5935-01-235-4289
NSN 5855-00-455-6070
NSN 2925-01-078-7854
NSN 2925-01-035-1096
NSN 6110-01-366-8912
NSN 6610-01-044-4740
NSN 5905-01-501-4558
NSN 5925-01-411-6028