This adjustable knuckle joint is a very versatile fitting that is typically used where a horizontal rail is to be joined to a sloping section.
This piece allows you to obtain the correct angle that is required for the application. Once the angle is obtained, the knuckle can be secured with a standard setscrew to lock it in place.
For use with C42 tubes.
This part is from the incredibly versatile range of galvanised malleable iron slip-on pipe and tube fittings produced by Interclamp.
They allow for quick and easy construction of different types of structures with the use of a simple hexagon key, rather than any complicated fixings.
Typically, these parts are used to construct hand rails and safety guardrails, but they are also suitable for a huge range of other structures such as playground equipment, shop fitting, sports practice nets, greenhouses, exhibition stands, wheelchair access ramps, and much more.

• Size: B34
• Dimensions: 78mm (a)
• Weight (kg): 0.87
• Interclamp 166