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 6685-01-307-3325
NSN 6135-01-230-4399
NSN 5998-01-372-1938
NSN 6645-01-133-4440
NSN 2925-00-836-9543
NSN 7035-00-251-8201
NSN 5990-01-493-4039
NSN 5990-00-345-8967
NSN 5835-01-360-1058
NSN 6645-01-253-6023
NSN 6110-01-557-9732
NSN 4140-00-547-8918