Editing Unified Thread Standard (section)

{{short description|Standard thread form}}
{{Use dmy dates|date=July 2022}}

The '''Unified Thread Standard''' ('''UTS''') defines a standard thread form and series—along with allowances, tolerances, and designations—for [[screw thread]]s commonly used in the [[United States]] and [[Canada]]. It is the main standard for bolts, nuts, and a wide variety of other [[threaded fastener]]s used in these countries. It has the same 60° profile as the [[ISO metric screw thread]], but the characteristic dimensions of each UTS thread (outer diameter and pitch) were chosen as an [[inch]] fraction rather than a [[millimeter]] value. The UTS is currently controlled by [[American Society of Mechanical Engineers|ASME]]/[[American National Standards Institute|ANSI]] in the United States.