] [Thread] [Date] [Author]

["Carter, Charlie" <carter(--nospam--at)aisc.org>]

>Sorry for the dumb question, but I can't find 

>my references defining what is the accepted 

>standard for the threaded bolt portion extension 

>through the nut in an anchor bolt situation (i.e. 

>how many threads need to be exposed).  For 

>some reason I think it's 2 threads minimum.

 

The full strength of a threaded rod is developed by the nut when the point of the rod is at least flush with the face of the nut. Therefore, just like for bolting applications, the installation requirement is that the nut face be flush with the point of the bolt (or further down the rod).

 

Charlie