Of the two, wedge anchors provide the most strength-and are my personal favorite of all the anchors to use. If you do, you risk splitting off a chunk of the slab. Because of the spitting/wedging force they put on the concrete, try to avoid getting closer than 3-inches to the edge of the concrete. They provide strength for both pullout and shear force. These include wedge anchors, sleeve anchors, large-diameter concrete anchors, lead shields, plastic anchors, and Tapcons (concrete screws) Wedge Anchors and Sleeve Anchorsīoth wedge anchors and sleeve anchors are excellent types of concrete anchors that hold a tremendous amount of weight. Those of us who don’t work for companies that pay $600 for a toilet seat typically use the types of concrete anchors shown here:Ī sample of the common types of concrete anchors. Think long-span bridges or nuclear power plants. These are also extremely expensive and relegated to projects where extremely tight tolerances and absolute safety is a must. They leave the threaded bolt and flange to indicate the exact torque was used to tighten the anchors. Some anchors feature bolt heads that snap off at a predetermined torque level. These appear most commonly on industrial and commercial sites and are too expensive or specialized for day-to-day use unless specified by an architect or engineer. The strongest anchoring systems utilize resin-based anchors you install with two-part epoxy. You can find dozens of types of concrete anchors on the average construction site. Summarizing the Types of Concrete Anchors and How to Use Them.Installation Tools for Various Types of Concrete Anchors.Make sure to measure the diameter and length before drilling so you won’t get a hole that is too tight, too short, or too loose. Wedge anchors are solid choices for drilling into concrete and there are a variety of ways you can install them. If you’ve drilled with and without lubrication, you probably noticed that drilling without lube is slower, especially if you’re not forcing your way through. Lubrication boosts your drilling speed since there is less friction. It doesn’t always have to be the case as lubrication also offers other things. Some surfaces like aluminum, brass, or cast iron don’t necessarily need lubrication to drill properly. It also keeps your drill bits working longer since it coats the drill bit with protection against rust and other stuff. This means less heat is generated, making your drill bits less compromised when they’re not that heat resistant. Lubrication decreases the friction between surfaces. Lubricate Drill Bits to Make Them Last Longer If it is and still doesn’t drill effectively, other underlying problems might need to be addressed. In the end, you want to ensure that the drill bit you’re using is compatible with the surface. Forcing it through also blunts the bit’s tip, making it unusable. Small drill bits are usually brittle so you need to use them carefully. You also might end up breaking the bit if you’re being forceful. The speed of the drill bit won’t change even if you force it through, and it will only do more harm than good. It’s not a good decision to force the drill bit through the material most of the time. It also makes the drilling easier and more accurate. This makes it easy for you to feel the mark as it is below the surface level. You can use a center punch and hammer to make a small dimple as a marking. To avoid this, measure where you want the hole to be and mark it. This causes inaccuracies in your work that could prompt you to start over again with a new piece. Drill bits tend to move around when it’s your first time drilling, or you have unsteady hands. This is helpful, especially if it’s your first time drilling. Tips for Using Small Drill Bits Place a Mark Wedge anchors are only used for solid concrete, unlike screws which can be used on a wide variety of surfaces. Anchors work by the following mechanisms:Įach has its own advantages and it depends on what you prefer like easy-to-use fast installation, support for weak materials, and many more. Drilling the hole a bit deeper than the length of the anchor allows for easy removal if needed.
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