Expansion anchor screws made from iron with four serrated barbed metal expansion tubes, designed for secure wall mounting on red brick, light brick, foam brick, or concrete surfaces, available in multiple drill diameter sizes and tube length combinations.
Iron Expansion Anchor Screws with Serrated Barbs for Brick and Concrete Walls

These iron expansion anchor screws are designed for DIY and professional metalworking projects that require a secure, firm hold in masonry surfaces. Featuring a four-serrated barbed metal expansion tube, they offer a robust alternative to plastic anchors, suitable for a range of materials from red brick and light brick to foam brick and solid concrete. Available in several standard drill diameter and tube length combinations, they allow you to select the right size for your specific load and wall type. As with all physical products, please note that slight colour differences may be visible due to photographic conditions or monitor calibration, and minor dimensional tolerances should be expected.
Features and Construction

These anchors are built for practicality and strength, focusing on the mechanical grip provided by their specific design.
Material and Build
The core component is the expansion tube, which is constructed from iron. This material choice differentiates it from common plastic expansion tubes, potentially offering greater resistance to crushing forces within the drilled hole. The defining feature is the four-serrated barbed design on the tube, which is intended to bite into the surrounding masonry as the screw is tightened, creating a firm and strong hold.
Size and Practical Fit
The product is offered in a variety of size combinations to match different screw diameters and installation depths. The specifications list options including 6mm, 8mm, 10mm, and 12mm drill diameters, each paired with specific tube lengths (e.g., 5x30mm, 6x32mm, 8x38mm, 10x60mm). It is important to match your drill bit exactly to the specified diameter and to choose a tube length appropriate for your wall material and the thickness you need to secure through.
Uses and Placement

The primary application is creating a reliable fixing point in masonry where a screw alone would not hold.
Professional Use
For tradespeople or serious DIYers, these iron anchors are suitable for mounting brackets, shelving units, light fixtures, or other hardware onto interior or exterior masonry walls. Their compatibility with red brick, light brick, foam brick, and concrete makes them a versatile option for various construction and renovation projects where a plastic anchor may not provide sufficient strength.
Everyday Home Use
At home, these can be used for securely hanging heavier items like mirrors, cabinets, televisions mounts, or external fittings to brickwork. The metal construction may be preferred for long-term installations or in areas subject to vibration or stress, where a more permanent and robust fix is required compared to standard plastic plugs.
Benefits and Buying Value

The value lies in the practical solution these anchors provide for specific mounting challenges.
Reuse and Low Maintenance
While typically used as a one-time installation item, the iron construction suggests it is not prone to the degradation some plastics might experience over time in damp or variable conditions. Once installed correctly, it should provide a lasting point of fixture without requiring maintenance.
Why Choose This Product
Choose these expansion anchors when you need a strong, metal-based fixing solution for masonry. The four-serrated barb design aims to improve grip, and the availability of multiple sizes allows for precise matching to your screw and wall requirements. They present a straightforward, no-frills option for achieving a firm hold in brick, block, or concrete.







