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 
Poland 
Brazil 
Spain 
Morocco 
Belgium 
Canada 
France 
Germany 
Republic of Korea 
United Kingdom 
Portugal 
Denmark 
Norway 
Greece 
Turkey 
NATO Maintenance and Supply Agency Classification: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 5855-01-364-9810
NSN 6240-01-310-9380
NSN 5965-01-256-0059
NSN 6685-01-645-1829
NSN 6610-00-738-2571
NSN 6685-01-037-6371
NSN 5985-00-069-4480
NSN 5935-01-492-6212
NSN 4140-01-099-1698
NSN 4140-00-956-9225
NSN 5999-01-092-4079
NSN 5925-01-112-0320