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 5965-01-167-8513
NSN 5945-01-417-2146
NSN 5990-00-543-2755
NSN 5950-00-632-0209
NSN 6220-01-244-4777
NSN 6650-00-195-7519
NSN 5935-01-278-4670
NSN 5996-00-486-8910
NSN 6645-00-975-6941
NSN 6145-00-082-5172
NSN 5950-00-675-7477
NSN 5996-01-573-7588