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desertfox, How would I choose this bolt? Is it just tensile strength of the bolt?

Tmoose, Yes, we have gearboxes and motors on these frames once the base is in place. However, these jack screws will no longer be holding these frames in place as they will be mounted to grouted-in floor plates once they are in position. There will be no final forces on the jack screws.

Chicopee, We will have no rotation. Only X/Y linear motion of the base.

Hi, We currently have a project to where we are moving a heavy (10 ton) steel base around into position. We are doing this with the use of what we call "push/pull" blocks. They are simply a 2" thick block with a threaded hole. We are sending a bolt through this threaded hole which will push our...