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 …

Below 1/4″ the diameters are given by a series of numbers from #0 to #12. Each “number” describes an arbitrary diameter as shown in the below table. It is also allowed to denote the …

Feb 2, 2021 · Here we’ll focus on the thread dimensions explained and the standard imperial/metric thread sizes chart.

Thread Tables for Screws

Mar 24, 2025 · These standards help engineers and manufacturers maintain consistency, reduce wear, and improve performance across various industrial and commercial uses. This guide …

Oct 31, 2025 · We have put together this thread size chart to help engineers, designers, and procurement specialists. Now, it’ll be so much easier to understand thread standards, …

In this article, we’ll explore the purpose and structure of a thread size chart, break down its components, and show you how to read and apply it effectively.

Aug 24, 2025 · Thread count/pitch: How many threads are on the screw per inch (imperial) or the distance between threads in millimeters (metric). Why Do You Need a Screw Size Chart? A …

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 …

This resource contains dimensions for threads and pitches for different threaded fasteners. There is data for both metric and imperial threads, and for both coarse and fine threaded fasteners. …