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 6145-01-173-1818
NSN 5925-01-384-4915
NSN 6620-01-470-9861
NSN 5905-01-317-6505
NSN 5950-01-518-2569
NSN 5996-01-054-3226
NSN 6135-01-008-4595
NSN 5975-01-634-0678
NSN 5996-01-530-3301
NSN 5996-01-578-6162
NSN 5950-01-403-2852
NSN 6110-01-339-2031