Torque Spec Chart For Bolts

Maximum recommended tightening torque for coarse threaded metric steel bolts: Download this as a pdf. The values are for slightly lubricated bolts. Bolt torque chart reference guides include grade 2, b7, a307, a325, grade 8, a490, and grade 5. The following suggested tightening torques provide an excellent starting point for determining torque requirements.

The following suggested tightening torques provide an excellent starting point for determining torque requirements. Clamp load calculated as 75% of the yield strength for the b7 specified in astm a193. Web in preparing this guide to torque values, the following basic assumptions have been made: 1) the torque values can only be achieved if nut or tapped hole has a.

This chart displays values for lightly oiled threads. Download this as a pdf. Grade 2, 5, and 8 values are for plated bolts. 1) the torque values can only be achieved if nut or tapped hole has a proof load greater than or equal to the bolt’s minimum tensile strength. The prevailing torque lock nut clamp loads are listed at.

Grade 2, 5, and 8 values are for slightly lubricated bolts. Remember, you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication. Web us recommended bolt torque. The bolt’s class indicates its material strength, with higher numbers meaning higher tensile and yield strength. Web the charts below show the ideal tightening.

The coefficient of friction (μ) is 0.14. Web us recommended bolt torque. Web maximum tightening torques for us bolts. Maximum recommended tightening torque for coarse threaded metric steel bolts: Web button head cap screws.

The bolt’s class indicates its material strength, with higher numbers meaning higher tensile and yield strength. Web torque is only an indirect indication of tension. Remember, you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication. Remember, you may need to vary these numbers somewhat based on the individual joint or.

Identify the grade, size, and thread density of your bolts and refer to the tightening torque columns. The size column also includes the thread count. Grade 2, 5 and 8 values are for plated bolts. The bolt’s class indicates its material strength, with higher numbers meaning higher tensile and yield strength. Clamp load calculated as 75% of the yield strength.

This chart displays values for lightly oiled threads. The tension is 70% of yield strength. 1) the torque values can only be achieved if nut or tapped hole has a proof load greater than or equal to the bolt’s minimum tensile strength. The load will be 90% of the bolt yield strength. Clamp loads estimated as 75% of proof load.

The tension is 70% of yield strength. The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. Web bolt torque values range from around 4 to 300 lbf⋅ft (5 to 400 n⋅m), depending on the factors in the above bolt tightening torque calculation.

Bolt torque chart reference guides include grade 2, b7, a307, a325, grade 8, a490, and grade 5. Bolts and nuts are new, standard finish, uncoated and not lubricated*. For dry bolts increase the torques with approximately 30%. The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's.