Category: Lag Shields

Lag shields are a type of anchor used for securing objects into masonry or concrete. They are a form of expansion anchor that works by expanding against the material in which they are installed, creating a tight and secure fit. Here’s how they work and are used:

• Design and Material: Lag shields are typically made of metal, such as zinc or lead, and come in two pieces that fit together. They are designed with an external shell that expands as a lag screw (a large, heavy-duty wood screw) is driven into them.
• Sizes and Types: They are available in various lengths and diameters to accommodate different sizes of lag screws and the weight of the objects being secured. There are short and long versions of lag shields, with the longer ones providing more grip in the installation material due to their increased surface area.
• Installation Process:
  • A hole is drilled into the masonry or concrete at the desired location, matching the diameter of the lag shield.
  • The lag shield is inserted into the hole.
  • A lag screw is then driven into the lag shield. As the screw enters the lag shield, it forces the sides of the shield to expand outward. This expansion anchors the shield securely within the material.
• Applications: Lag shields are used in various applications, including mounting frames, shelving, and other fixtures to concrete or masonry walls. They are particularly useful for heavy or load-bearing installations because they can provide strong and durable support.
• Advantages: The main advantage of lag shields is their ability to securely anchor into materials that might otherwise be challenging to penetrate or attach to. They distribute the load over a larger area within the masonry or concrete, reducing the risk of the material cracking or breaking around the anchor.

However, it’s important to select the appropriate size and type of lag shield for the specific application, considering the weight of the object to be secured and the condition of the masonry or concrete. Improper selection or installation can lead to failure of the anchor to hold securely.