ThePipingMart Blog Fasteners What is Rawl Bolt? Properties, Composition and Uses

What is Rawl Bolt? Properties, Composition and Uses

Rawl Bolts

If you’re in construction or engineering, there’s a good chance you’ve heard of Rawl Bolt. These bolts, also called wedge anchors, are popular in the construction industry for their reliability, strength, and durability. Rawl Bolts secure building materials like steel to concrete or masonry surfaces. This blog post will provide an in-depth look at Rawl Bolts, exploring their properties, composition and uses.

What is Rawl Bolts?

Rawl bolts are fasteners made from either stainless steel or zinc-plated mild steel. They consist of a threaded bolt and a nut, both designed to hold materials together in an action known as bolting. The main difference between Rawl bolts and similar products lies in their superior strength and size range – with some available up to M64 diameter! They are primarily used for heavy-duty applications such as scaffolding, engineering constructions, transmission towers, sheeting systems, road signs, etc. Their versatility makes them ideal for many industrial applications requiring strong joints.

Rawl Bolts Properties 

Rawl Bolts have several properties that make them popular in construction. Firstly, they feature a high load capacity, which means they can handle heavy loads and stresses. Their durability makes them suitable for outdoor applications, as they resist weather, corrosion and chemicals. Rawl Bolts are also fire-resistant, making them suitable for fire safety requirements.

Rawl Bolts Composition

Rawl Bolts are made of high-carbon steel, which is hardened to provide the strength and durability they are known for. The steel used in manufacturing these bolts also features a layer of zinc coating, providing added corrosion resistance. On the other hand, the sleeve is made of various materials, including nylon and plastic.

Uses of Rawl Bolts

Rawl Bolts have seen widespread use in construction and engineering industries, as they offer a reliable way to anchor structures to a solid base. They are commonly secure steel, aluminium and plastic materials onto concrete, block, or brick surfaces. Rawl Bolts can also be used to anchor heavy equipment and machinery to the ground.

Installation and Maintenance

Installing Rawl Bolts correctly is essential to ensure maximum strength and stability. It’s essential to use the correct drill bit diameter, depth and clearance hole in the concrete for the Rawl Bolt installation. After installation, periodic maintenance is necessary to ensure the structure’s safety. Maintenance involves inspection to detect damage, corrosion or deformation and replace the bolts when necessary.


In summary, Rawl Bolts are widely used in construction and engineering industries for their robustness and reliability. Understanding their properties, composition, and uses is essential for proper use in construction projects. Rawl Bolts offers a safe and secure way to anchor to a concrete or masonry surface following the correct installation and maintenance procedures.

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