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.
Brazil 
France 
Italy 
Greece NSN 5925-01-448-9590
NSN 5895-01-606-9817
NSN 7035-00-861-7913
NSN 5985-01-039-2779
NSN 7035-00-205-1932
NSN 5910-01-080-7210
NSN 6645-00-572-2535
NSN 5925-01-583-0260
NSN 2925-01-600-2309
NSN 6650-00-629-8027
NSN 6135-01-585-8174
NSN 5965-00-378-3403