Basics of Concrete Anchors

Learn the common types of concrete anchors and how to use them, to ensure your industrial applications are secure and maintain a reliable hold.

Expansion Anchors (Wedge, Sleeve, and Drop-in types)

These anchors transfer tension loads to the base material (such as concrete or block) through an expansion mechanism. This mechanism activates when the anchor expands inside the drilled hole.

Adhesive Anchors

These anchors resist tension loads using an adhesive. The adhesive bonds the threaded rod (or rebar) to the inside walls of the drilled hole.

Keying Anchors (Umbrellas, Inserts, and Screens)

These anchors gain holding strength by expanding part of the anchor into a hollow space within a base material that contains voids, such as concrete block or brick.

Friction Anchors (Hammer-Sets, Nail Drives, and Forming Spikes)

Load capacity is developed by driving the fastener into a pre-drilled hole in concrete, block, or brick. The hole is slightly smaller than the fastener, creating a friction fit.

Mechanical Interlocking Anchors (Screw-Type Anchors)

Tension loads are resisted by the fastener’s threads engaging with threads cut into the base material, such as concrete, block, or brick.

In concrete, anchor holes are typically made using rotary hammer drills with carbide-tipped drill bits. Always follow the manufacturer's instructions for the correct hole diameter and depth, as specified for the particular anchoring system.

Proper cleaning of the anchor hole is essential for optimal anchor performance. Always read and follow the installation instructions provided for each specific product.

Shop Concrete Anchors

Shop Now