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 Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 6645-01-502-3068
NSN 6220-01-655-4329
NSN 5996-01-503-3410
NSN 6610-01-380-2087
NSN 5975-01-612-9664
NSN 6110-01-385-0247
NSN 6240-01-045-9269
NSN 5925-01-629-1600
NSN 6110-01-412-9334
NSN 5930-00-896-1842
NSN 5915-01-331-8695
NSN 6240-01-447-4003