Nom thread size .3125-24, unplated .3115 to .3120. Aluminum coated. Dia. Min 0.460
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.
NSN 5990-01-253-5672
NSN 6150-01-537-5806
NSN 6110-00-280-2753
NSN 7035-01-090-3369
NSN 5975-01-318-4877
NSN 2925-01-368-5773
NSN 6220-00-909-7239
NSN 5835-01-479-7908
NSN 7035-01-267-4836
NSN 5965-01-257-8926
NSN 5935-01-657-2545
NSN 6240-01-019-1308