Hollow Wall Anchor — Drywall & Plasterboard
Hollow wall anchors are designed for drywall, plasterboard, and other hollow-cavity wall constructions. Several types exist — molly bolt (sleeve compresses behind the wall), self-drilling drywall anchor (zinc or nylon, drives directly without pre-drill), and expansion-type plastic anchors.
Specifications
| Types | Molly bolt, Self-drilling drywall anchor (zinc & nylon), Plastic expansion plug |
|---|---|
| Wall Thickness | Typically 8-25 mm range, varies by anchor |
| Material | Zinc-plated steel, nylon, brass |
| Load Capacity | Light to medium — match to hanging item weight |
Frequently Asked Questions
What's the strongest type of drywall anchor?
For heavy items in drywall, toggle bolts (where a spring-loaded wing flips out behind the wall) generally provide the highest pull-out capacity. Molly bolts are second-strongest and offer the advantage of being removable and re-usable. Self-drilling and expansion-type anchors are best for light loads.
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