4 inch self drilling screws

Butterfly screws, also known as wing nuts or butterfly nuts, are a distinctive type of fastener that have gained popularity in various engineering and design applications due to their unique shape and functionality. These screws derive their name from their appearance, which resembles a butterfly in flight when the wings are fully opened. The wings serve as handles, allowing for quick and easy tightening or loosening by hand without the need for additional tools.

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In construction, black hex head timber screws are commonly used in framing, decking, fencing, and furniture building. Their strength, combined with the ease of use offered by the hex head, makes them a go-to choice for professionals and DIY enthusiasts alike. However, it's crucial to select the right size and type of screw for the job at hand. Factors such as the thickness of the timber, the load-bearing requirements, and the desired finish all play a role in determining the most suitable screw.

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