Internal drive ribbed
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.
Classification: Bolts and bolts and their nuts or washers exported in the same shipment
NSN 5905-00-225-9029
NSN 5835-00-948-8972
NSN 5935-00-131-2214
NSN 6110-01-018-8742
NSN 5945-01-240-7061
NSN 7035-01-176-7523
NSN 5960-01-541-9884
NSN 5935-00-953-4394
NSN 5855-01-037-7342
NSN 5895-01-615-8775
NSN 6240-01-487-5182
NSN 5925-01-073-5773