Screwdriver
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Depends very much on the quality of the concrete but I’d expect a typical garage floor to give way long before a bolt. As often as not, those fixings will simply slide out, if they don’t, you’ll pull up a small chunk of the floor.
Give me a lever long enough and a place to stand and I will move the Earth.
Give me a lever long enough and a place to stand and I will move the Earth.