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Overview. The Unified Thread Standard (UTS) defines a 60° thread form in Inch dimensions as described in the ASME B1.1 standard. It is the North American equivalent of the ISO metric thread system. The UTS serves as the leading standard for bolts, nuts, and a wide variety of other threaded fasteners used in the USA and Canada.
Unified National Coarse Screw Thread per ANSI B1.1 screw thread date chart. The Nominal Major Diameter and Threads-per-inch (Pitch) are defined by ANSI/ASME B1.1 and are the choices for the customary Unified screws and nuts.
2 Φεβ 2021 · We have discussed the basic thread terms including thread diameters, crest, root and more definitions in the last article. Here we’ll focus on the thread dimensions explain and the standard imperial/metric thread sizes chart.
UNF – Unified National Fine Thread. Female and Male UNC/UNF threads are both parallel. The UNC/UNF flank angle is 60°. Unified threads comes in three different classes: for applications where a liberal tolerance is required to permit easy assembly even with slightly nicked threads.
2-3⁄4 3 3-1⁄4 3-1⁄2 3-3⁄4 4 0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.216 0.25 0.3125 0.375 0.4375 0.5 0.5625 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5 1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 1.524 1.854 2.184 2.515 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31. ...
23 Φεβ 2024 · The UNC thread chart referenced on the Engineering Toolbox page is a comprehensive table listing the dimensions and specifications for Unified National Coarse (UNC) threads as defined by ANSI/ASME B1.1 standards.
13 Φεβ 2015 · Unified National Imperial Screw Thread Calculator. (All dimensions are in inches, UOS) Metric thread calculator here. Glossary. Thread calculator: All calculated results are based on; Basic outside diameter, number of threads per inch, series designation and class tolerances.