Q Clamp Handrail fitting. These are a simple and cost effective way of creating an endless variety of tubular structures without the need for welding.  Our extensive range of fittings when combined with standard EN10255 tubing enables the user to create any structure imaginable for use in all manner of industries.

Such Q clamp handrail fitting uses include but are not limited to:

  • Safety railings
  • Handrails
  • Racking
  • Play areas
  • Shopping trolley bays
  • Exhibition stands
  • Market stalls
  • Advertising hoardings
  • Lighting grid systems
  • Awnings
  • Car ports
  • Hanging rails
  • Support frameworks
  • Bicycle racks
  • Benches
  • Furniture
Q clamp handrail fitting are a black-heart malleable iron casting manufactured to BS EN 1562:1997 using grade B32-10 material with a hot dipped galvanised finish to BS EN 1461:1999.
All Q clamp handrail fitting are supplied with stainless steel grub screws. In order to protect any exposed threads in outdoor installations, we recommend the use of an anti-corrosion galvanising spray such as the one sold as part of our Q clamp range. The grub screws can be tightened with an Allen key, however, if fully tightened using a ratchet key to a torque of 4.1kg/m (29ft/lb) the grub screw is capable of withstanding an applied slip load of 900kg.
Q clamp fittings are available in five standard sizes designated by the suffix 1 to 5 on the Q clamp reference number. The standard tube sizes are given in the following table.
Size Reference Tube diameter (O/D) Nominal bore
1 26.9mm ¾”
2 33.7mm 1”
3 42.4mm 1 ¼”
4 48.3mm 1 ½”
5 60.3mm 2”


Note: The nominal bore is a discretionary dimension only. The wall thickness can vary depending on the gauge of tube used which will alter the bore measurement.

All Q clamp fittings are tested and approved by TÜV, Europe’s leading independent testing house (see our links page for more information).
TUV Rheinland http://www.tuv.com/en/corporate/home.jsp

Whatever your purpose, the information provided on this website should enable you to easily determine which Q clamp fitting suits your needs. The information and guidelines provided here are given only as guidance. The ultimate responsibility for selecting the correct fitting and size for any application is that of the user.  The user must also ensure that any structure is of sufficient strength to support the weight of the Q clamp fittings and tube in addition to any applied load.


If you need any further technical support or assistance regarding the use and interpretation of this information then please do not hesitate to contact us.