Torque values for various grades and diameters of fasteners.

Bolt Torque Chart showing suggested torque values and corresponding bolt clamping forces for various sizes and specifications of fasteners.

The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. The calculator is generic an can used for imperial and metric units as long as the …

The Bolt Torque & Preload calculator can be used to calculate the torque required to achieve the desired preload on a bolted joint. See the reference section for details on the methodology and …

However, for a more precise determination of the preload requirement, it is essential to consider the combined effect of all external forces and account for any losses that may affect the overall …

Get an overview of reference values for preload and tightening torques in an assembly, including tables for metric coarse threads, metric fine threads, tightening torques for plastic screws, and …

Use this table for comparing hardness of carbon steels, cast steels and low alloy steels in a heat treated and hot formed condition. According to ISO 18265. Units of Work, Energy and Heat …

Use our guidelines to get an indication of torque and preload values for any size bolt M3 – M42, using Nord-Lock washers and a variety of lubrication methods.

Preload Requirement Charts can be developed to include other effects such as the effect on bolt loading of differential thermal expansion. They are a useful method for joint analysis and …

Jul 19, 2025 · Learn how to calculate bolt torque using charts for M8, M10, M16. Includes torque formula, preload, friction values, and a downloadable torque chart PDF.