A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.
Dept. of the Air Force 
Dept. of the Navy 
Germany 
Republic of Korea 
Greece 
Turkey Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 6650-00-991-3211
NSN 5905-01-182-4716
NSN 5930-00-808-6544
NSN 5990-01-633-9503
NSN 6135-01-633-8502
NSN 5998-01-568-1311
NSN 5975-01-295-5769
NSN 5965-00-009-8679
NSN 5910-01-219-8063
NSN 4140-00-972-9513
NSN 6320-00-360-1744
NSN 2925-01-545-2717