Powder-actuated tools only require about 5lbs of force to hold and drive their nail into the concrete. Both cut and concrete nails require greater hammer force to drive into concrete. Concrete nails may look like normal nails, but are made of high-carbon hardened steel and have striated shafts for better grip in the concrete. A lot more steps and mess.Ĭut nails have a tapered flat shaft and square point. Holes then need to be aligned and drilled into the wood before washers and nuts can secure them to the concrete. Some anchors are self-expanding, some require plastic or lead shields, and others some kind of adhesive to secure them in the hole. The number of holes and added steps means more time to do the job.Īnchor bolts are either placed into the concrete as it sets, or set into holes drilled into hardened concrete. Some require anchors inserted into the concrete, and others bite and grip the edges of the hole. There are a variety of different screw-down fasteners, but all require a predrilled hole. Wood can be attached directly to interior concrete using screws, screws with anchors, anchor bolts, nails, or adhesives.
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