Key Clamp Fittings
Use our large assortment of key clamps to make all kinds of strong and unique constructions. DIY at home or big handrailing project? Order your key clamps online via Keyclampshop.co.uk. The tube clamps are available in numerous diameters and types, think of tee clamps, base flanges, hinges and brackets. We also offer matching steel tubes.
Our key clamps (size in mm indicates the outer tube diameter)
Fast delivery from a wide range
Which types of key clamps are available?
With more than 75 types of tube clamps, you’ll always find the right fitting for your construction project. Our clamps are available in various designs and diameters, allowing you to create the perfect connection for any application.
► Choose T-pieces, corner pieces, or elbows corners and connections.
► Use base plates or flanges for secure fixing to the floor or wall
► Opt for hinges and adjustable angle fittings for sloped or special constructions
► Or choose cross pieces and connectors to combine multiple tubes
Whether you’re building a table, railing, or canopy, we have the right fitting for every purpose. All tube clamps are available directly from stock.
Questions about keyclamps
We receive many questions about our key clamps. To make things easier for you, we’ve put together all the answers to our most frequently asked questions in one blog:
► Everything about key clamps
We’ve also written a few helpful blogs to guide you in choosing the right diameter or calculating the correct tube length:
► Construction Tips for a Key Clamp Project!
► All About Key Clamp Diameters
Key clamps are essential components for building strong, versatile and modular tube constructions. Combined with steel tubes, they form the foundation for countless structures, including safety railings, handrail systems, furniture, storage racks and industrial frameworks.
Build strong structures with key clamps and tubes
Key clamp fittings make it easy to connect tubes without welding or specialist tools. Each fitting is equipped with an integrated set screw that secures the tube firmly in place using a simple Allen key.
This system allows you to quickly create strong and stable structures that can easily be adjusted, expanded or reused. Because of this flexibility, key clamps are widely used in both professional construction projects and DIY builds.
Typical projects include handrail systems, guardrails, frameworks, benches and shop fittings.
Wide range of key clamp fittings
Our range includes more than 75 different key clamp fittings and tube connectors. Each fitting is designed to match a specific tube diameter, ensuring a secure and stable connection.
Available key clamp sizes include:
- 26.9 mm – ideal for light furniture and display frames
- 33.7 mm – commonly used for furniture and shop interiors
- 42.4 mm – the most popular size for handrails and general constructions
- 48.3 mm – suitable for heavy-duty railings and safety barriers
- 60.3 mm – designed for large industrial structures
All fittings can be combined with our matching steel tubes, allowing you to build strong tubular constructions for a wide range of applications.
Types of key clamp fittings
Key clamp systems consist of many different fittings, each designed for a specific structural connection. By combining the right fittings with matching tubes, you can build almost any tubular structure without welding.
The most common types of key clamp fittings include:
- Elbow fittings – used to create corners in handrails or frames.
- Tee fittings – connect two or three tubes at a 90° angle, often used in guardrails.
- Cross fittings – allow three or four tubes to intersect in structural frameworks.
- Base plates – used to fix a vertical tube to the floor or another surface.
- Swivel fittings – allow adjustable angles between tubes.
- Inline connectors – extend tubes in a straight line.
These fittings make it possible to create a wide range of structures such as handrail systems, industrial barriers, frames and support structures. The modular design means your construction can easily be expanded or modified when needed.
Common applications for key clamps
Key clamp fittings are used in many industries and projects, including:
- Safety railings and handrail systems
- Industrial and warehouse barriers
- Furniture such as tables, racks and shelving
- Outdoor structures including canopies and fencing
- Retail displays and exhibition frameworks
How key clamp fittings are manufactured
Our key clamps are manufactured from high-quality steel using a casting process in precision moulds. This method creates strong, one-piece fittings that provide durability and consistent performance.
Each fitting is carefully finished to ensure an accurate fit with the corresponding tube diameter, allowing secure and reliable connections in structural applications.
Galvanised key clamps for outdoor use
All key clamp fittings are hot-dip galvanised. This protective zinc coating provides excellent resistance against corrosion, making the fittings suitable for both indoor and outdoor use.
Because of this galvanised finish, key clamps are widely used for handrails, guardrails, safety barriers and other structures exposed to weather or demanding environments. Combined with our steel tubes, they create strong and durable constructions that require minimal maintenance.
Accessories and tools
To complete your project, we also supply a range of useful accessories. These include spare set screws, end caps and other components that help you finish your construction neatly and securely.
Expert advice and fast delivery
At Keyclampshop, all key clamp fittings are stocked in the UK for fast delivery. Our team has extensive experience with tube clamp systems and can help you select the right fittings and tube diameters for your project.
You can also find helpful guides and inspiration in our Help & Advice section.
Order your key clamps today and discover the strength, flexibility and reliability that make tube clamp systems a popular solution for both professionals and DIY builders.