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.
What causes finger pain and numbness in pregnancy? If you have tingling, numb and painful hands during pregnancy, it's likely to be caused by carpal tunnel syndrome (CTS). CTS is common in pregnancy. It happens when there is a build-up of fluid (oedema) in the tissues in your wrist.