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.

2. Improved Aesthetics The countersunk head design provides a neat appearance, especially in visible or decorative applications. This feature is vital for projects where aesthetics are as crucial as functionality.