High strength bolts
January 13, 2026
By the Fastenal Engineering Team
By the Fastenal Engineering Team
|
In a maintenance type application, and sometimes even in an OEM design situation, a bolt failure often leads people to opt for a stronger bolt class or grade to prevent future failures. On the surface, this makes sense. Compared to a Grade 5 bolt, a Grade 8, Socket Head Cap Screw or Grade 9 bolt would increase the bolt strength roughly 25-50%. However, as highlighted below, there are a few issues that must be considered when using higher strength bolting products:
It is always wise to look at the root cause of anyfailure before moving to a higher strength bolt. In design work, it is wise to consider a larger size bolt or a higher number of bolts in the joint before simply moving to a higher strength product. Fastenal Company disclaims all warranties, both express and implied, relating to the information, reports, opinions and analysis disclosed to the Customer by Fastenal Company. Fastenal Company shall not be liable for any errors or omissions or any losses, injuries or damages arising from the use of such information, reports, opinions and analysis by the Customer.
You may also like:Vertical Divider
|
Like what you're seeing here? Subscribe to the Blue Print for FREE and get the magazine sent right to your address.
|
