As a professional contractor, you know that outdoor projects require special considerations. In addition to choosing the right materials and design elements, you must also select the best type of screws for outdoor use.
While some screws are designed for interior applications, outdoor screws have certain characteristics that make them ideal for exterior projects.
Through this article, we will share our knowledge and expertise on the most suitable screws for outdoor construction projects to deliver flawlessly finished results.
Outdoor Screws Have Certain Characteristics.
Rust-Proof Screws for Outdoor Use
Using rust-proof screws is critical for any outdoor project. Rust can compromise the structural integrity of screws and make them ineffective.
- Stainless Steel Screws: Stainless steel screws, particularly 305 and 316 grades, are highly recommended for outdoor use due to their exceptional rust resistance. 305 stainless steel is perfect for general outdoor projects like decks and fences, while 316 stainless steel is ideal for marine or saltwater environments.
- Coated Screws: Screws with protective coatings like WAR Coating, Yellow Zinc, or Dacrotized coatings are also rust-resistant. However, each has specific applications and limitations.
Appearance and Size
When selecting outdoor screws, look for rust-resistant ones made from stainless steel. They should also withstand extreme temperatures, moisture, and UV light exposure.
The size of the screw is also important—you want one that is large enough to provide strong support but small enough not to detract from the overall appearance of your project.
Diameter
The diameter of the screw will depend on the material you're using; metal requires a larger diameter than wood or plastic.
Best Type of Screws for Outdoor Use
Deck Screws and Coated Screws
Designed for outdoor use, these screws have rust-resistant coatings, ideal for decks and fences. Options like WAR Coated and Dacrotized screws provide excellent corrosion protection but may not be suitable for all applications of treated lumber.
Silicon Bronze Screws
Perfect for marine and high-humidity environments, silicon bronze screws offer superior durability and are commonly used in seaside construction.
Stainless Steel Screws
- 305 Stainless: Great for general outdoor projects, offering high corrosion resistance.
- 316 Stainless: Best for coastal applications within 15 miles of the ocean or marine applications, preventing rust, staining, and corrosion.
W.A.R. Coated Screws
These screws feature a coating system that consists of three layers: a metallic zinc layer, passivation, and a high-grade anti-corrosion chemical conversion film..
Phillips Head, Square Drive, or Star Drive Screws
Each type is strong and reliable, with star drives providing a better grip and reduced slipping, making them ideal for pressure-treated lumber.
Can Construction Screws Be Used Outside?
A common question regarding outdoor projects is whether construction screws are suitable for exterior use.
The answer is yes, if they have an exterior coating, but they should only be used on projects requiring a little structural support, such as decks and fences.
Construction screws without an exterior coating are not designed to hold up against extreme weather conditions and are more likely to corrode if used outside.
Instead, opt for outdoor construction screws specifically designed for exterior projects. They will provide the necessary strength and durability, and their rust-resistant coating will ensure they last a long time.
Are Brass Screws Good for Outdoors?
While brass screws are known for their non-corrosive properties, they are generally not recommended for outdoor projects. Brass is typically used for decorative purposes in indoor applications. In outdoor settings, brass screws may tarnish or weaken over time, making them unreliable for structural use.
For better longevity and resistance, choose stainless steel or coated screws.
Build Solid Projects With Fastener USA
Fastener USA is your reliable source for all fasteners, including construction screws perfect for any kind of outdoor project.
Our secure online buying process ensures quality products are delivered directly to your door so you can build solid projects confidently. So when it comes time to decide which type of screw is best for your next outdoor project, choose construction screws from Fastener USA!
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