Square Key Clamp Fittings for Box Section Tubing

High Quality Square Key Clamp Fittings for Strong and Modern Frameworks

Our square key clamp fittings are designed for creating sturdy frameworks using Square Hollow Section (SHS) or box section steel. They are ideal for building signage frames, industrial style furniture, display stands, storage racks, shop fixtures and many other contemporary structures. These fittings offer a strong, weld free solution that requires no specialist skills or tools.

Although square key clamp fittings are suitable for a wide range of structural builds, they are not intended for safety critical installations such as handrails or guardrails. For any project involving fall protection or pedestrian safety, our round key clamp systems remain the correct choice.

Why Use Square Key Clamp Tube Connectors?

Square key clamp tube connectors provide a versatile, durable and easy to assemble alternative to welded or drilled construction. Whether you are creating shelving, tables, display frames or bespoke furniture, these fittings allow you to build solid connections using one allen key. This makes assembly quick and modification even easier, allowing you to adapt or expand your structure whenever required.

All square key clamp fittings are manufactured from high quality materials such as galvanised steel and malleable cast iron, ensuring long service life. The galvanised finish protects against corrosion and temperature variation, making it suitable for indoor and outdoor use. For projects where appearance matters, these fittings can also be powdercoated to specification.

Components and Sizes Available in Our Square Key Clamp Range
Our square key clamp range is offered in two core sizes, 40×40 mm and 25×25 mm, covering the majority of commercial and DIY project requirements. Every fitting is produced in line with BS EN ISO 1461 for dependable long term performance.

Key components include:

• T pieces and elbows for simple 90 degree connections and angle adjustments
• Footplates for securely fixing square tube structures to floors, walls or other solid surfaces
• Cross joints for connecting multiple tubes at right angles, adding strength and rigidity
• Straight couplings for joining lengths of square tube in line for extended frameworks

Each fitting is designed for quick assembly using a standard Allen key. Once tightened, the bolt grips the square tube firmly and creates a robust, reliable connection built to last.