An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.
Dept. of the Air Force 
Dept. of the Navy 
National Aeronautics and Space Administration 
Slovenia 
Columbia 
Saudi Arabia 
Philippines 
Turkey Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 6130-01-603-9904
NSN 5915-01-003-7945
NSN 5835-01-447-2544
NSN 6240-01-367-6561
NSN 6145-01-152-2417
NSN 5835-00-111-3419
NSN 6620-01-012-2852
NSN 5905-01-245-6412
NSN 5935-01-213-5452
NSN 2925-01-415-0264
NSN 5895-01-480-3512
NSN 5950-01-573-9662