Torque specifications, especially for critical joints, should be determined under actual assembly conditions due to the many variables involved which are difficult to predict and do affect the …

The following suggested tightening torques provide an excellent starting point for determining torque requirements. Remember, you may need to vary these numbers somewhat based on …

Torque values for various grades and diameters of fasteners.

In the following table of torque specifications, you will find all the necessary torque values in Newton-meters (Nm) for common screw thread sizes and strength classes.

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

There are many varying factors which affect torque. The figures in this chart are safe figures for standard torque applications only. The chart below can be used to convert foot-pounds to …

For example, for a M12 x 1.75 Property Class 10.9 hex cap screw and nut with a Zinc Yellow Plating the recommended torque is found in Table 18 (138 N-m or 102 ft-lbs).

Torque Values for Stainless Steel and Non-Ferrous Fasteners ... Suggested Maximum Torquing Values - a guide based upon actual lab testing on dry or near dry fasteners wiped clean.

If you need to torque a critical fastener and you can't find a manufacturer's torque spec, you can use the charts below for the maximum recommended torque values for different grades and …

Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. AFT Fasteners is your trusted source for fastener information.