A few qualities of the screws you use for your metal roofing or metal siding fastening needs are important to be aware of, and one good example here is thread type. What do we mean when we refer to thread type, and which common thread types are used for metal roofing and siding screws today?
At Supply Maverick, a division of Mid Michigan Metal Sales, we're here to offer the best selection of metal roofing and siding screws and fasteners available on the market, including a variety of screw thread types. Here are some basics on what thread type is and why it matters, plus some of the most common metal roofing screw thread types to consider for your needs.
For those just learning about metal roofing and fasteners, screw thread type refers to the shape and angle of the spiral ridges on a screw that allow it to grip onto materials as it is tightened. The threads are essentially what give the screws their hold and stability in different types of surfaces.
The right screw thread type can make all the difference when it comes to effectively securing your metal roofing or siding panels. It not only determines how well the screws will grip onto the material, but also affects factors such as durability, ease of installation, and resistance to corrosion.
There are several types of screw threads commonly used for metal roofing and siding applications such as pancake heads. Some of the most widely used will be covered across the rest of this blog.
When it comes to various soft materials that screws may be utilized for, such as wood or foam insulation, coarse threads are the go-to option for a strong and secure grip. These threads are designed to cut deeply into the material, providing maximum holding power.
Now, coarse threads are also sometimes used for metal roofing and siding. They are ideal for attaching metal sheets to wooden or metal frames, as they provide a secure grip that can withstand strong winds and other weather conditions.
On the other hand, fine threads are better suited for harder materials such as metal, especially in thinner varieties. These threads are also used for denser substrates, such as hardwoods and composites, as they can be driven in with greater ease and less splitting.
One of the key benefits of fine threads is their ability to create a tight fit without causing damage or splits. They are also less prone to stripping or loosening over time, making them ideal for applications where frequent adjustments may be needed.
For certain metal profiles, twin threads allow for much faster and more efficient installation of screws. As the name suggests, twin threads consist of two intertwined threads instead of a single one. This allows for double the number of threads to be engaged at once, resulting in a faster driving speed and increased holding power.
Twin threaded screws are commonly used in metal decking and roofing applications, as well as in assembly lines where speed is essential. They can also be used in softer wood materials, but may not provide the same level of holding power as fine or coarse threads.
Here are some common visual cues that can help you determine which thread type is present for a given screw, including existing screws in your roof that you did not install:
At Supply Maverick, a division of Mid Michigan Metal Sales, we're happy to offer a wide range of roofing screw thread types for any metal roofing, metal siding or similar need. Contact us today to learn more about our products or to place an order!
