Corrugated fasteners are thin strips of sheet metal with grooves that provide strength and durability. They come in various sizes and are used to join wood in finish and rough carpentry. They have two types, parallel and angled, and are installed by hammer or gun.
A corrugated fastener is a thin strip of sheet metal with a pattern of alternating grooves. These fasteners are usually made from 18 to 22 gauge sheets of stainless steel or cold rolled. Although they are relatively thin, the grooved shape of the corrugated fastener gives it a surprisingly high level of strength and durability.
Corrugated fasteners come in a range of sizes, but generally range in length from one to three inches (25.4 to 76.2 mm). They have a pointed end and a flat end that has been sawn off. Sharp ridges run down the sides of a corrugated fastener, which help hold it more securely to the wood after installation.
These fasteners are a common alternative to traditional nails, screws and dowels when it comes to joining woods. They can be used in many different types of wood joints and are one of the most common fasteners for joining miter joints. Corrugated fasteners are used for both finish carpentry, such as tables and furniture, and rough carpentry, including components hidden from view. A crimp fastener can also be used to join small or delicate pieces of wood, which can be damaged by nails or screws.
There are two basic types of corrugated fasteners available, including parallel and angled units. Parallel drives have splines that run in parallel lines along the shaft. They are the safer of the two types and are the better choice for miter cuts or harder wood species. Angled drives have grooves that run at an angle to the tree and are less capable than parallel drives for joining wood securely.
A corrugated fastener is installed by hand using a hammer. The fastener should be installed into one of the wood components first, with the fastener traveling approximately halfway through the thickness of the wood. The other piece of wood can then be added and hammered into place. For more delicate work, place the second piece of wood on the fastener and alternate the hammer over the two pieces of wood to join them a little at a time. A wavy fastener should never run in the same direction as the wood grain, as this could split the wood.
For harder wood species, it may be too difficult to use a hammer. In this type of application, a corrugated fastener gun can be used to automatically install these fasteners. These guns can also be used in commercial jobs and other large scale projects to quickly and easily install corrugated fasteners.
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