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Q-Clamps • Key Clamps • Interclamps • secure tube-to-tube connections • sizes for 21.3 mm – 60.3 mm tube • ideal for handrails, balustrades, shop fittings, barriers, furniture frames, playground equipment, racking & structural frames • no welding required • fast assembly.
Explore our premium selection of tube clamp fittings in the UK, including Q-Clamps and key-clamp-style connectors. Manufactured from hot-dip galvanised malleable iron, these fittings are engineered for exceptional durability, load strength, and long-term corrosion protection in both indoor and outdoor environments.
Designed to suit standard tube sizes of 48.3mm, 42.4mm, 33.7mm, and 26.9mm outside diameter, each fitting secures easily with a simple hex or Allen key, no welding, threading, or specialist fabrication required. The result is a fast, straightforward installation process suitable for professionals and DIY users alike.
Perfect for constructing handrails, guardrails, balustrades, playground structures, display systems, bike racks, shelving, safety barriers, and more, these modular fittings are widely used across construction sites, retail spaces, healthcare facilities, schools, warehouses, and home projects. If tube clamps are not suitable, we sell a range of scaffold fittings that connect 48.3mm diameter tubes with a 3.2mm or 4mm thickness.
Our tube clamps are primarily constructed from cast malleable iron with a hot-dip galvanised finish to resist corrosion and extend lifespan in outdoor or harsh environments. This zinc coating protects against rust, making it suitable for long-term use on construction sites, in marine settings, or in industrial facilities. These components are graded to BS EN 1562 or equivalent.
By sourcing from certified manufacturers, we guarantee products that prioritise safety and reliability, backed by over a decade of industry expertise.
Choosing tube clamps for your structural projects delivers clear, practical advantages:
No-weld flexibility
Build custom frameworks, handrails, guardrails, furniture, and barriers without welding, threading, or specialised equipment. A simple Allen key or hex wrench secures the set-screw connections—perfect for irregular layouts, unique angles, or on-site adjustments where rigid systems fall short.
High strength & structural integrity
Manufactured from precision-engineered malleable iron or high-grade steel, tube clamps create strong, load-bearing joints suitable for safety railings, shelving, frames, playground equipment, and industrial structures.
Cost-effective & reusable
Their modular design allows easy disassembly and reconfiguration, minimising waste and long-term costs. No welding equipment, hot-work permits, or specialist labour required, saving both time and budget.
Fast, tool-minimal installation
Quick to assemble and adjust using basic hand tools, tube clamps significantly reduce installation time compared to welded systems. Future modifications or repairs are simple and non-disruptive.
Durable & weather-resistant
Hot-dip galvanised finishes provide excellent corrosion protection, making tube clamps ideal for indoor, outdoor, marine, and industrial environments with minimal maintenance.
Safe & standards-ready
Designed to meet structural and safety requirements for applications such as handrails and guardrails, tube clamps provide secure, stable connections for safety-critical installations.
The result: a versatile, durable, and efficient solution for building strong tubular structures, trusted by professionals, fabricators, and DIY users alike.
Tube clamps such as Q-Clamp, Kee-Clamp, and Interclamp are widely used to create strong, modular tubular structures across many sectors.
In construction and building projects, they are commonly used for permanent and temporary handrails, guardrails, edge protection, and access solutions where on-site flexibility is essential.
Within industrial environments, including factories, warehouses, and processing facilities, tube clamps are ideal for safety barriers, equipment frames, pipe supports, work platforms, and protective guarding around machinery.
For commercial and retail spaces, they are frequently used to build shopfitting displays, shelving systems, storage racking, partition frames, and signage structures that combine strength with a clean, industrial aesthetic.
In public and recreational settings, tube clamps are popular for balustrades, pedestrian barriers, bicycle racks, playground equipment, park structures, and event frameworks due to their durability and weather resistance.
Across infrastructure and facilities management, they provide reliable solutions for walkways, access ramps, plant screening, protective barriers, and modular frameworks that may need future adaptation or expansion.
Their real advantage lies in their adaptability—allowing precise installation around obstacles, uneven surfaces, and complex layouts without the need for welding, making them suitable for both permanent installations and reconfigurable structures.
Selecting the appropriate tube clamps depends on the specific requirements of your project. Start by assessing the tube size to ensure compatibility with the outside diameter of your tubing, such as the common 48.3mm standard. It’s also important to determine the load requirements by checking the safe working load (SWL) ratings to confirm the fittings can support the intended weight.
Consider the environment in which the structure will be installed, choosing galvanised or double-dipped finishes for added protection in corrosive or outdoor settings. Think about the angles required within your design as well—swivel fittings provide flexibility for variable angles, while fixed fittings offer greater rigidity and stability. Finally, review your budget and required quantities, as bulk purchasing can reduce costs, and the reusability of tube clamps can provide additional long-term savings.
Proper installation is crucial for safety:
Regular maintenance, like cleaning and lubricating threads, extends product life.
Tube clamps, also known as scaffolding couplers or fittings, are metal connectors used to join steel or aluminium tubes in scaffolding and structural applications. These clamps eliminate the need for welding, allowing for quick assembly and disassembly with basic tools like a wrench or ratchet. Typically fitting tubes with outer diameters of 48.3mm or similar sizes, they create stable frameworks for temporary or permanent installations. Made from robust materials, tube clamps provide secure joints that can withstand heavy loads, making them ideal for environments requiring flexibility and durability.
The most popular size these tube clamps fit is 48.3mm OD tubes; other sizes are available upon request including 26.9mm, 33.7mm, 42.4mm and 60.3mm.
Yes, our hot-dip galvanised clamps provide excellent corrosion protection for outdoor use.
Yes, their durable design suits both temporary and long-term structures.
Yes, contact us for pricing on large orders, with fast nationwide delivery.
All clamps comply with and are manufactured to BS EN 1562-1997 standards for strength.
Both Q-Clamp and Interclamp are designed for strong, reliable tubular connections, but they differ in their level of corrosion protection.
Q-Clamps are hot-dip galvanised, providing dependable corrosion resistance for most outdoor applications such as handrails, signage, and furniture.
Interclamp fittings undergo a double-dip galvanising process, delivering enhanced protection for harsher or more corrosive environments.
In short, Q-Clamps are well-suited to standard outdoor structures, while Interclamp offers added durability where extra protection is required.
All our tube clamps come with adjustment screws that are easily tightened with the correct size Allen key. The set screws have a cutting head for a strong grip, ensuring a reliable connection.