Round base t-nuts are nice because they are easier to install than
4 prong t-nuts. They are used in many commercial climbing gyms because of their strength and the minimal effort required to install. Unlike 4 prong t-nuts you don't need two people to install them properly. You can insert them by hand into the predrilled holes in your climbing wall. There are 3 holes in each t-nut which allow you to fasten a couple screws into the wood from behind the wall. These screws will keep the t-nut from spinning and from popping out when you try to fasten a hold to the wall. 3 zinc plated screws are included with each t-nut ordered. If you are willing to spend the extra money you'll save a lot of time!
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