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 5935-01-167-8866
NSN 6220-01-146-2838
NSN 6685-01-543-5243
NSN 5910-01-084-1176
NSN 6650-01-476-0134
NSN 5905-00-752-3692
NSN 5960-00-489-2805
NSN 6135-00-377-9165
NSN 6685-00-507-8819
NSN 7035-01-213-5590
NSN 7035-01-472-1999
NSN 4140-01-286-2729