Traditionally climbing holds are bolted onto your wall using the t-nut method, which involves drilling many holes into your wall, then hammering in a threaded t-nut. The other option, if the hold allows for this is to simply use screws and attach the holds anywhere on your wall.
What's good about screw-on holds?
What's bad about screw-on holds?
Here at Uncarved Block we are working to bring you a full range of sizes in screw-on holds, all they way up to large jugs.