UNF (Unified Fine Thread) Unified Fine (UNF) and Unified Coarse (UNC). American threads consist of two common and easily obtained thread patterns known as U. N.F and U.N.C. U.N.F [national fine] is exactly the same as the old S.A.E [standard american engineers] that existed before threads were unified.
Numbness in pinky finger may also be caused by damage to the nerve on the injured side of the finger. There are small nerves, which measure only about two to three millimeters in diameter, in the finger that run along each side. Damage to the finger's nerves may occur due to cuts or a serious hand injury.
Numbness in fingers causes many problems, and can stem from many diseases. Anything that reduces blood supply to the nerves of the hand can produce finger numbness. Take carpal tunnel syndrome, for example. It causes swelling (or a change in position) of tissue within the carpal tunnel, which, in turn, irritates the median nerve. The result is finger tingling and numbness.