Chemical anchor bolts are specialized fasteners that utilize a two-part adhesive system to bond with the concrete substrate. Unlike traditional mechanical anchors that rely purely on physical expansion or friction to secure themselves within the concrete, chemical anchors use a resin or adhesive, which is mixed with a hardener, to create a strong bond. This resin is typically injected into pre-drilled holes in the concrete before the anchor bolt is inserted. As the resin cures, it forms a very strong adhesive bond with both the bolt and the concrete, leading to excellent load-bearing capabilities.

The hallmark of self-drilling screws is their ability to create their own pilot holes, negating the need for pre-drilling, which can save significant time and effort during installation. The 13mm self-drilling screw is typically constructed from high-strength steel, ensuring durability and reliability. These screws often feature a sharp, drill-point tip which enables them to penetrate various materials quickly and efficiently. Coupled with a robust thread design, they provide excellent holding power, making them ideal for fastening metal, wood, and other materials.

1. Efficiency The primary advantage of Tek screws lies in their ability to self-drill. This feature significantly reduces installation time, as workers do not have to pre-drill holes. This efficiency translates to cost savings on labor and time, making them an attractive option for contractors.

4. Wall Type Consider the type of wall you are mounting your TV on. Verify that the butterfly screws you choose are appropriate for your wall type, whether it’s drywall, concrete, or something else.