A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
NSN 6320-01-498-4954
NSN 6610-00-204-6792
NSN 5905-00-990-8806
NSN 5990-01-027-8260
NSN 5920-01-531-6891
NSN 4140-01-350-5753
NSN 5960-01-499-7172
NSN 5998-01-564-9523
NSN 5910-01-424-6355
NSN 6240-01-420-6495
NSN 6240-01-455-5638
NSN 5835-01-312-4446