An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
Dept. of the Army 
Dept. of the Air Force 
U.s. Marine Corps 
Dept. of the Navy 
Federal Aviation Administration 
U.s. Coast Guard 
National Aeronautics and Space Administration
National Aeronautics and Space Administration
National Aeronautics and Space Administration 
General Services Administration 
Austria 
Finland 
Poland 
Brazil 
Spain 
Morocco 
Malaysia 
Thailand 
Australia 
Belgium 
Canada 
New Zealand 
France 
Germany 
Republic of Korea 
United Kingdom 
Philippines 
Netherlands 
Portugal 
Italy 
Denmark 
Greece 
Turkey 
NATO Maintenance and Supply Agency Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 5975-01-168-4374
NSN 2925-01-194-9737
NSN 6130-01-281-7268
NSN 6645-01-179-0243
NSN 6130-00-978-6703
NSN 6620-00-711-8895
NSN 2925-00-614-1758
NSN 5999-01-045-8475
NSN 5945-00-243-8113
NSN 6240-01-162-2411
NSN 6150-01-352-5613
NSN 7035-01-633-9537