Hollow Wall Anchor

Hollow wall anchors are fasteners designed to attach items to drywall and other hollow wall materials where there is no solid backing behind the surface. Unlike wood screws that rely on solid material for grip, hollow wall anchors spread the load over a larger area by expanding, folding, or gripping behind the wall. Common styles include toggle bolts that open behind the wall, molly bolts that expand and clamp the drywall, and self drilling drywall anchors that cut into the wall surface and hold by thread engagement.

Choosing the right hollow wall anchor depends on the wall material, the thickness of the drywall, and the type of load. Light loads like small pictures may work with plastic or self drilling anchors, while heavier items like TVs, shelving, or grab bars usually require a toggle style anchor or fastening into studs. Installation quality matters: drilling the correct hole size, keeping the anchor aligned, and avoiding over tightening helps prevent damage to the drywall and improves holding strength.

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