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.
Dept. of the Navy Classification: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
NSN 5999-01-341-5839
NSN 6320-01-571-8974
NSN 6645-01-019-8662
NSN 7035-01-417-6261
NSN 5960-00-308-9123
NSN 6645-01-536-6111
NSN 5950-00-728-6601
NSN 6610-00-000-0192
NSN 5996-01-014-2806
NSN 6110-01-385-8449
NSN 6320-01-449-1014
NSN 6105-00-631-5296