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 6240-01-386-5952
NSN 6105-01-267-1534
NSN 5925-01-386-3121
NSN 6145-01-028-9185
NSN 6240-01-572-6003
NSN 5945-01-551-1250
NSN 6645-01-132-1862
NSN 6130-00-905-7182
NSN 5915-01-377-5881
NSN 5990-00-101-0065
NSN 5945-01-218-7056
NSN 6320-00-695-3891