Butterfly screws, also known as toggle bolts, are a type of fastener that features a pair of wings that fold during installation and expand once they are inside a pre-drilled hole. The design allows for a stronger grip on hollow walls, such as drywall, where regular screws might not provide sufficient anchoring. Butterfly screws are particularly useful for mounting heavier items like televisions, where the risk of falling can be a significant concern.

Tek screws, also known as self-drilling screws, are engineered fasteners designed for metal-to-metal or metal-to-wood applications. The distinguishing feature of tek screws is their sharp, drill-like point, allowing them to create their own hole as they are driven into a material. This capability eliminates the need for pre-drilling, which can save significant time and effort during installation.

One of the main advantages of using resin anchors for concrete is their ability to provide a reliable and durable connection. Unlike traditional mechanical anchors, resin anchors distribute the load evenly across a larger surface area, reducing the risk of stress concentration and potential failure. This even distribution of force helps to increase the overall stability and strength of the connection, making it ideal for high-stress applications.