Attaching steel or wood to concrete is rarely as simple as it ought to be. There are all sorts of fasteners available for the job—lead shield anchors, expanding bolts, wedge bolts, drive-pin anchors, and drop-in anchors, to name a few. What most of these fasteners have in common is that they can be unpredictable and unreliable when it matters most. Fasteners that don’t work as planned cost both time and money.
I mostly use 3/8-inch anchors, but ½-, 5/8-, and ¾-inch LDTs are also available. Another nice feature is that these anchors have a textured finish that will accept a powder coating to match the finish on whatever you’re fastening. But the best thing about them is that it’s drill, drive, done.
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Matt Jackson, aka, the Timber Tailor, is a master carpenter, remodeler, and Sketchup pro in Rapid City, S.D.