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.
Any tingling or numbness in the finger next to the pinky? Tingling and numbness in these two fingers can be associated with the Ulnar nerve and Corpal Tunnel Syndrome. Not to be confused with Carpel Tunnel Syndrome which is associated with the thumb and other two finger on the hand.