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.
Tingling in the pinky finger can be caused by a disorder of the neck spine, anatomical abnormality around the clavicle (cervical rib, anomalous muscles resulting in thoracic outlet syndrome), disorders of the elbow (cubital tunnel syndrome), wrist (Guyon's canal syndrome), hand (hammer hand syndrome) or the pinky finger itself (injury).
Quick Answer. There are numerous causes for tingling in the left hand, and some include diabetes, vitamin deficiencies and systemic diseases. Other possible causes for tingling in hands and feet are alcoholism, toxins, infections, autoimmune disorders, inherited disorders and injuries, according to WebMD. A doctor can perform a variety of tests to determine the cause of tingling in the hands and feet.