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Flooring Installation Adhesive?

8.2K views 17 replies 9 participants last post by  RV8R  
I removed the tie downs and put an 8mm hex head bolt all the way down in the hole. Then put the plywood on top and (gently) jumped up and down on that spot. Makes a nice imprint of the hex head on the plywood. If you careful to center the drill, you can get a nice tight tolerance hole.