different types of foundation bolts

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.


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These screws find extensive use in industries ranging from woodworking and metal fabrication to automotive and construction. They are particularly useful when working with thinner materials like sheet metal, plastics, or fiberboard, where traditional threading may not be feasible. In automotive applications, they are used for body panel assembly, while in construction, they might be employed for attaching drywall or roofing In automotive applications, they are used for body panel assembly, while in construction, they might be employed for attaching drywall or roofing In automotive applications, they are used for body panel assembly, while in construction, they might be employed for attaching drywall or roofing In automotive applications, they are used for body panel assembly, while in construction, they might be employed for attaching drywall or roofingwafer head self tapping screws.

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