What is the minimum thread length on high-strength structural bolting assemblies for preloading?

The minimum thread length is calculated strictly according to:

As a part of High-strength structural bolting assemblies for preloading.

In calculation, you need to consider standard reference thread length (b), minimum length of the shank - un-threaded part of the bolt, and distance from the head of the bolt till the first full thread.

To help with that, we have created some useful calculators.

In any doubts, please contact our Quality Department.

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