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Custom Thread Length for High Strength Bolts

Custom Thread Length for High Strength Bolts

Custom Thread Length for High Strength Bolts

(OP)
All,

Per AISC the thread length of a 3/4" A325 bolt is 1 3/8".  

Several bolt manufacturers will customize thread lengths per the customers request.  Is there anything that prohibits the customization of thread length for high strength bolts?

Thanks

RE: Custom Thread Length for High Strength Bolts

There is no restriction on thread length.  Fully threaded bolts are also available.  The primary issue would occur is X values are intended.   

http://www.FerrellEngineering.com

RE: Custom Thread Length for High Strength Bolts

You can make the bolt as short as you wish.  However, at some point you begin to get too few threads to carry the stress applied:  For example, you want a high strength bolt of a certain diameter to carry a calculated load.  If less load were to be carried, you could use a lower strength material or a smaller diameter bolt.

If you try to apply that predicted load through only two or three threads, you will strip those threads - regardless of what the AISC default length is.    

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