Unified Screw Threads per. ANSI/ASME B1.1-1989 (R2001), R2001) Nomenclature, are used. Acceptability criteria are described in ANSI/ASME B1.3M-1992 (R2001). Note: This screw …

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.

Inch & Metric Thread Standards Visit our online store for product availability by the nominal major diameter and the number of threads per inch. For example, a 1/4-20 (UNC coarse) thread has …

Apr 6, 2025 · Both belong to the Unified Thread Standard (UTS), a system based on inch measurements that defines thread forms, sizes, and tolerances. Note: For a more detailed …

Feb 23, 2024 · The table includes various diameters and threads per inch for the UNC series, providing essential information such as major diameters, tap drill sizes, and pitches in both …

Thread Tables for Screws

For engineers, machinists, and designers, understanding the difference between inch and metric thread sizes is vital for accurate machining. This guide explores these standards, ensuring …

Thread charts typically list various thread sizes in both inch and metric measurements, along with corresponding pitch values. These charts are essential for ensuring proper fit and functionality …

Dec 19, 2025 · By consulting a thread chart, manufacturers and buyers can ensure that the selected threads are suitable for the intended use, whether working with inch or metric thread …

Thread series cover how diameter/pitch combinations are measured by the number of threads per inch (TPI). Get your free thread pitch charts here.