[TheForge] Setting screws in concrete floor Mostly OT

[Lynn Emrich]

I have a job to forge some 'keeps' for chairs in a
theatre. They will be screwed to the floor with 1/4 20
bolts. The problem is that they must be removable so
the chairs can be removed to make room for wheel
chairs. My problem is in putting  the female part of
the bolt (the 'nut') in the concrete floor. 
If anyone has any experience with a problem like this
I could really use some advice.
Thanks for your help, Lynn



       
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