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.

Advantages of Metal Expansion Nuts

While bracing steel beams play a fundamental role in structural integrity, they also come with challenges that engineers must address. The design and implementation of bracing systems require careful consideration of the building's purpose, location, and anticipated loads. Furthermore, bracing must be adequately integrated with the overall structural framework to prevent the introduction of weaknesses or stress concentrations.