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Torque Calculator for Steel Screws
Designed according to VDI 2230 guidelines The Excel program allows the user to calculate tightening and preload torques for all classes of steel screws.
How to use
Open the program by clicking the link below
Enter the torque scatter for your tooling in the top left. It is already set at 17% (which is standard for commercial torque wrenches)
Automatically torque figures are generated for all sizes and finishes
If you want to view one size or finish only use the dropdown arrows at the top of these columns. The calculator has already been pre-set with the correct coefficients of friction (e.g. Zinc=0.125)
Notes: This calculator is the copyright of TR Fastenings Ltd and must not be altered or re-distributed without their express consent.
You must have Excel installed on your computer in order to open this program
Note: Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.