FASTENERS 101™
Anchor FAQ
Frequently Asked Questions (FAQ) About Concrete Anchors
Concrete anchors are typically rods with a threaded top portion and a base that expands in masonry materials to provide a strong holding force in concrete or other solid surfaces.
Concrete anchors are used for securing items like warehouse racking, signs, railings, or heavy equipment to concrete walls or floors, ensuring a firm and reliable hold.
Drill a hole to the appropriate size in the concrete, insert the anchor, and use an expansion tool or drive a screw to expand the anchor, securing it firmly in the hole.
Drill a hole in the concrete, insert the anchor, and drive it in so it expands and grips the hole tightly, providing a strong fastening point.
Concrete anchors are very strong, but their holding strength depends on factors like vibration, load weight, concrete age, and anchor type. Always consult manufacturer specifications for load ratings
Some concrete anchors, like concrete screws, are removable by unscrewing. Many expansion anchors, such as wedge anchors, are designed for permanent use and are difficult to remove.
Drill a hole, insert the plastic sleeve anchor, and drive a screw into the sleeve, which expands to grip the concrete securely as the screw is tightened.
Wedge anchors are typically designed for permanent installations and are not easily removed without cutting or grinding them off.
Concrete anchors are not designed for use in wood and should not be used in such applications, as they may not provide a secure hold and could damage the material.
For removable anchors like concrete screws, simply unscrew them. For expansion anchors, you may need to cut them off with a grinder or saw, as they are often permanent.
Common types include wedge anchors, sleeve anchors, concrete screws, and drop-in anchors. Each type is suited for specific applications, such as heavy-duty or light-duty fastening, depending on load and material.
Consider the load weight, concrete type, environmental conditions, and whether the anchor needs to be removable. Consult load charts or contact our team for expert guidance.
Some anchors, like certain wedge or screw anchors, are designed for cracked concrete, but you must check the manufacturer’s specifications to ensure safety and performance. We also sell anchors specifically made for use in cracked concrete.
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Wedge Anchor Diagram
