Calculate tightening torque, preload and surface pressure for hex head, socket head and countersunk screws. Customized head shapes, hole chamfers, reduced shanks and materials are available options.

Based on VDI 2230:2014

Fastener where torque will be applied
I I
I
I
I
I
Clearance hole - ISO 273
Chamfer diameter dha I
Reduced shank
I
Reduced shank diameter dT I
Mechanical properties of material, thread size and friction
Property class of screw
Minimum yield strength of screw Rp02
I
I
Data used in calculation
Results
I I




I I
I I
I
I
I

Verify your calculation, maximize potential of your product.

Bossard Expert Eduation
Could you or your engineering team use a refresher course on fastening technology? Visit Bossard Expert Education for available engineering seminars to consider!

Learn more

Bossard Expert Test Services
Want to verify your products are meeting quality standards? Test in one of our 14 certified testing laboratories worldwide (3 with a ISO/IEC 17025 certification).

Learn more

For the purpose of providing services, this website uses cookies. You will consent to this by clicking on “OK” and/or using our services.
Please click on privacy policy to find the information on cookies and the possibilities for modifying the terms of their storage.