What Is An Expansion Anchor?

by | Mar 30, 2015 | Business

Expansion anchors are used when it is necessary to fasten and object to a solid wall such as concrete. Although it is not a problem to screw into wood, this is not the case when it is desirable to screw directly into masonry. Expansion anchors in NY provide a secure, solid and reliable bond, the anchor expands as the screw is being inserted; the result is that the anchor grips the inside of the pre-drilled hole thus preventing the anchor and the screw from falling out of the hole.

A homeowner will use expansion anchors when hanging a picture for example, the anchor can also be used if it is necessary to fix something to a concrete surface outdoors. Anchors are equally useable in wood as well as drywall although the design is somewhat different.

Depending on the weight of the object to be suspended a simple plastic anchor can be used in drywall. This type of anchor is little more than a plastic sleeve, slightly tapered with wings at the tip. Once there is a hole drilled to accept the anchor it is pressed in until the head of the head of the anchor is flush with the drywall surface. When the screw is run into the anchor it expands, forcing the wings to grip onto the drywall.

In the event the object to be hung is quite heavy then hollow wall anchors in NY are recommended. This type of anchor is usually made from metal; it functions somewhat differently than a convention plug anchor. A hollow wall anchor has a body which expands as the screw is run in, as the screw reaches its limit the rear of the anchor flairs out and grips the inside of the wall. With the anchor captive in the drywall heavier objects can be safely suspended.

Wall anchors are available in a wide range of sizes, in most cases the manufacture of the anchor publishes guidelines that help the user decide which size is best based on the weight to be suspended and the base material. Even though there are basic guidelines as to which anchors in NY are best suited for an application it must be understood that the strength of the anchor is only as strong as the material it is inserted into. If, for example, the anchor is inserted in a hole which has been drilled in weak and crumbling concrete it will not meet the supporting weight specification.

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