An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; 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 
Finland 
Poland 
Spain 
Singapore 
Morocco 
Australia 
Canada 
New Zealand 
Republic of Korea 
Portugal 
Italy 
Norway 
Greece 
Turkey 
NATO Maintenance and Supply Agency Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 5960-01-543-0235
NSN 6110-01-540-4610
NSN 5895-00-222-5043
NSN 6130-01-618-4220
NSN 4140-01-512-0744
NSN 5920-00-799-8851
NSN 6240-01-254-6019
NSN 5910-01-531-4796
NSN 6150-00-216-2900
NSN 4140-00-814-5987
NSN 5855-00-079-2370
NSN 6685-01-105-8999