Dimensions of hex bolts, heavy hex bolts, square bolts, hex caps screws and heavy hex structural bolts.

Jul 16, 2021 · Use our bolt size chart to learn how to measure bolt size and the different dimensions of a bolt. Imperial and metric measurements included.

Metric External (Fasteners) Thread and Fastener Sizes M20 - M50 Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter UN Inch Internal Screw Threads Formulas and Calculator …

This page provides tables listing sizes of inch and metric bolts, nuts, and washers.

To really understand a fastener like a bolt, you have to look at it in three dimensions. Understanding these dimensions helps when you are ordering replacements or designing a joint that requires …

Standards for dimensions and tolerances are issued by the American National Standards Institute (ANSI) in cooperation with the American Society of Mechanical Engineers (ASME) and the Industrial …

Aug 26, 2025 · Discover the ultimate bolt size chart with dimensions, standards, and uses. Learn how to choose the right bolt size for strength, durability, and fit.

Mar 14, 2025 · Our chart provides detailed specifications for standard US hex bolts, helping you select the right bolt size for your project. Bolt dimensions as per ASME B18.2.1.

A bolt size chart is a comprehensive reference that outlines the critical dimensions and specifications of bolts, including diameter, thread pitch, length, and sometimes strength grade and material type.

Complete bolt specifications including US & metric dimensions, grade markings, torque values, and measurement guides. Free downloadable charts for hex bolts, carriage bolts, and lag bolts.