Metal expansion nuts, often referred to as expansion anchors or expansion inserts, are specialized fasteners that expand when a bolt or screw is threaded into them. They typically consist of a cylindrical body with slits along its length or an expandable design that facilitates outward expansion. The main purpose of these nuts is to create a secure grip within a substrate, such as concrete, wood, or metal, thereby preventing loosening due to vibrational forces, temperature fluctuations, or stress.

In the vast world of construction and woodworking, the right fasteners can make all the difference. Among them, the 5 tek screw has gained popularity for its versatility, efficiency, and strength. Understanding its features, applications, and benefits can provide insight into why this particular screw type remains a go-to choice for many professionals and DIY enthusiasts alike.

1. Ease of Installation One of the major advantages of roof self-drilling screws is their ease of installation. Contractors can quickly attach roofing panels with fewer tools, which can significantly reduce labor costs and time on-site.