Torque values for various grades and diameters 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 meter-kilograms. …

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 torque …

Cross-reference the bolt size and grade to find the recommended torque value. The chart provides torque specifications in inch-pounds (in.-lbs.) or foot-pounds (ft-lb).

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 the individual …

Use our bolt torque chart & calculator to avoid joint failure. Learn torque specs, the role of lubrication & prevent over or under-torquing.

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.

Find suggested starting torque values for different bolt sizes, threads per inch, and materials. Learn why you need a bolt torque chart and how to use it for the perfect fit.

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 sizes of fasteners.

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