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 5945-01-323-7171
NSN 5935-01-363-3864
NSN 6105-01-227-5992
NSN 6220-01-565-0971
NSN 6620-00-008-3280
NSN 5998-00-203-1232
NSN 6110-00-148-8536
NSN 6110-00-269-2696
NSN 7035-01-621-1791
NSN 5930-00-454-8487
NSN 5910-00-051-9066
NSN 6105-01-411-5970