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.
Classification: Zirconium and articles thereof nesoi
NSN 6620-00-079-0311
NSN 5998-00-334-0386
NSN 4140-01-486-2839
NSN 5950-00-042-3155
NSN 6320-00-116-3658
NSN 6685-00-531-2019
NSN 5835-01-604-6337
NSN 5985-00-917-9824
NSN 5835-00-366-0240
NSN 5945-01-415-6049
NSN 5895-01-314-6223
NSN 5975-01-016-7079