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 6220-00-614-7174
NSN 6105-00-240-1055
NSN 6220-01-085-4463
NSN 6320-01-547-2743
NSN 5999-01-415-1215
NSN 6240-01-444-7785
NSN 5925-01-466-0676
NSN 6645-01-086-7668
NSN 5975-01-521-3903
NSN 5915-00-629-4294
NSN 6240-01-192-2479
NSN 6650-01-397-1925