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 
U.s. Coast Guard 
National Aeronautics and Space Administration 
Austria 
Lithuania 
Poland 
U.s. Postal Service - Procurement and Supplies Dept. 
Brazil 
Spain 
Singapore 
Kuwait 
Morocco 
Malaysia 
Thailand 
Australia 
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 6320-01-532-7491
NSN 6220-01-507-8942
NSN 5975-01-006-7080
NSN 5910-01-266-5372
NSN 5998-01-336-4062
NSN 5998-00-837-7326
NSN 5999-01-443-4023
NSN 5905-01-152-7520
NSN 5910-00-452-5957
NSN 5895-01-308-6473
NSN 6130-00-549-2607
NSN 6240-01-037-7108