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Sleeve anchors are versatile expansion anchors designed for securing fixtures to masonry substrates including concrete, brick, and block. They are commonly used for light to heavy-duty fastening tasks.
Molly anchors are specialized expansion anchors designed for hollow walls. Unlike standard plastic drywall anchors that grip the sides of the hole, Molly anchors expand and collapse outwards behind the drywall to distribute weight over a larger area, offering a more secure hold for heavier items.
Chemical anchors are ideal for high-load applications, close-to-edge installations, or structures subjected to vibration. Unlike mechanical anchors that rely on expansion pressure, chemical anchors use a resin compound to bond directly with the concrete, preventing stress on the surrounding material.
The choice depends on the base material (solid concrete, hollow brick, etc.), the weight of the load, the exposure to environmental elements, and whether the load is static or dynamic. Heavy-duty anchors provide structural support for heavy steel and timber constructions.
Proper installation requires drilling a hole to the correct diameter and depth using a hammer drill, cleaning all dust and debris out of the hole thoroughly, inserting the anchor, and then tightening it to the recommended torque specification to achieve maximum holding power.
