I'm building a home wall. I'm following the Metolius blueprint. Just about ready to drill my holes and place all the T-nuts. I'm about to buy my holds, and I'm confused about the "screw on" holds that come in most packs. How do I install these if I have t-nuts in every hole on my wall (as the Metolius plans tell me to do)??
You would screw them on, directly into the wood, in an area without t-nuts. You can buy packs without them, as you won't want many or want to move them much. You might also have some holds that need set screws in addition to the t-nut to keep them from moving.