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).
Finger paresthesia can be due to any activity that causes prolonged pressure on a nerve or nerves, such as fine motor activities (drawing), repetitive motion (keyboarding), and sleeping the wrong way on your arm. Finger paresthesia can also be due to orthopedic conditions that compress a specific nerve. Tingling and numbness of both the pinky finger and the ring finger together can be a sign of entrapment or compression of the ulnar nerve in the arm due to problems with the shoulder, elbow or wrist joint.