Torque bolt. In the design of a fastener application Bolt torque depends on: Bolt size, type and grade Lubrication (a low friction factor must be considered with MoS2-based grease) The given bolt torques are based on the 90% of the bolt yield strength Jun 30, 2025 · Explore our bolt torque chart for metric bolts. In this article, we’ll share the metric and imperial bolt torque chart with you, and also introduce torque measurement, calculation, and the differences between torque and tension. In this article, we’ll cover everything you need to know about bolt torque, including why it . Read on to discover what is bolt torque, the bolt tightening torque calculation formula, how to calculate bolt torque, and typical torque values for bolts. Correct torque is critical in ensuring the bolt holds its load securely without damage or failure. Jun 12, 2025 · How much torque is required for a bolt? To save time for calculation and variation, a torque value table is useful. What Is the Bolt Torque? A bolt is a fastener that consists of a shaft and a head. Bolt Torque Chart showing suggested torque values and corresponding bolt clamping forces for various sizes and specifications of fasteners. Bolt Torque Calculator The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. Whether you’re building a bridge, assembling machinery, or changing a tire, it’s important to know how to properly torque bolts to ensure they hold up under stress and vibration. K -constant d - diameter of bolt (m, ft) F - axial bolt force or load (N, lbf) Recommended bolt torques. S. This stress based on the yield strength of the bolt material. This bolt torque calculator will ensure that you tighten up your bolts with the correct torque. Oct 25, 2024 · Bolt torque refers to the twisting force applied to a bolt, nut or screw to achieve the necessary tension in a joint. The calculator is generic an can used for imperial and metric units as long as the use of units are consistent. It is recommended that the induced stress not be allowed to exceed 80% of the yield strength. Refer to the charts to find the ideal tightening torque. The tightening torques below are for imperial U. Grade 2 bolts are cheap but not very strong, grade 8 bolts are the strongest and most expensive, and grade 5 bolts are the most common. bolts with tension approximately 70% of yield strength. Apr 26, 2023 · Bolts are used in countless applications, from construction and manufacturing to automotive and aerospace industries. Just as well, as a loose bolt can really ruin your day. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. In Brief: SAE Bolt Torque Chart – Grade 2, Grade 5, Grade 8 SAE bolt grades indicate the strength of the bolt. Find recommended tightening specs by diameter and grade, including common sizes like M8 and M12. Each bolt grade has an ideal tightening torque for maximum clamping force without breaking. MIL-HDBH-60 Design Considerations The first requirement in determining the amount of torque to apply is a knowledge of the desired bolt stress. The shaft Bolt Elongation by Turn Formulas and Calculator per. ryvuvk pingr xtpd pokkt balhu yuvqf sbbkbrr rqri squn usi