Pre-drilled and pure urethane, are the two things you want to hear when referring to screw on holds. It gives you an unbreakable, easy to install product. All you need is a cordless drill and at least 3/4 inch thick plywood or thicker attached to a frame and you are ready to attach! Foot holds, hand holds, challenging shapes and plenty of fun easier to grab on to climbing holds make up this priced to sell set of screw on holds. There's more than a handful of two handed jugs in there! These holds have a 3/16 inch pre drilled holes in them and attach with a #6 x 1 5/8" zinc plated screw for a wood wall which are included. If you choose the concrete wall option, you will be supplied with 2 inch long blue Tapcon concrete screws that require a little more installation work. You will need to drill a pilot hole with the included concrete bit using a hammer drill. You would then attach the holds with a cordless drill. Be sure not to tighten the holds down with a hammer drill.
