Our product offering includes high-strength stainless steel grades with very little or no compromise in ductility – including some of the strongest grades on the market.
Discuss more complex requirements with our technical team
Ultra-high strength stainless steel grades
We offer stainless steel grades ranging from strength class 8.8 to 15.9 for applications where downsizing, clamping force and strength are critical. Our grades offer a unique combination of strength and good ductility.
- Benefits of high-strength fastener grades:
- Higher resistance against relaxation.
- Opportunities to downsize, decrease weight or reduce the number of fasteners while maintaining clamping load.
- Ability to optimise overall assembly or product design.
- Ability to withstand higher static or dynamic stresses.
- Greater safety.
Our grades with high mechanical strength
Delivering high-strength customer solutions
Case Study
BUMAX overcomes galling issues on adaptive secondary mirror for NASA telescope
4 min read

Contact our technical team to discuss your custom BUMAX fastener requirements.
We can help you find the optimal solution for your specific requirements.