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Sheet Metal Screw
Sheet metal screws are designed for attaching sheets of metal, as their name suggests. They can also be used for wood or to secure other materials together, but they are primarily used for sheet metal. This kind of screw does not have a smooth shaft and typically has threading all the way up to the head to ensure they can easily drive through the sheet metal.
Usually made from steel, these screws are designed to self-tap through metal, making them sharp and durable. Available in a range of sizes with sharp points and flat or hex heads, these heavy-duty screws are versatile and reliable. Sheet metal screws are characterized by the presence of exterior threading covering their entire shank. The exterior threading doesn’t begin until part of the way up the screw’s shank. Sheet metal screws are distinguished from other screws by featuring a shank that’s completely covered with external threading.
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Sheet metal screws work by digging into sheet metal with their fully threaded shank. It’s difficult — or impossible in some cases — to drive a conventional screw into sheet metal. As previously mentioned, only part of their shank is covered with external threading. When attempting to drive a conventional screw into sheet metal, the partially covered shank will prevent it from entering. Sheet metal screws solve this problem by featuring a shank that’s completely covered with external threading. They don’t get “hung up” at the point of entry like standard screws. Their threaded shank will initially dig into sheet metal, allowing for fast and easy installation.
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