Norma de rosca unificada (UTS): La norma de roscas dominante en Norteamérica
The thread standard most commonly used in North America is the Unified Thread Standard (UTS). UTS screws are specified by their nominal diameter and thread count. For example, a ¼-20 is a screw with a diameter of ¼ of an inch and a thread count of 20 threads/in. Screws with...


