Tube Clamps, Key Clamps, Kee Klamps, Pipe Clamps, and Tubeclamps all describe the tube fittings that are fixed onto tubes by way of an allen key and grub screw. The advantage is that there are no external parts, unlike scaffold fittings with their nuts, bolts etc.
Kee Klamps / Pipe Clamps / Tube clamps can be used for many applications, from designer furniture, like desks and bed frames, to climbing frames. Kids play areas, like Wacky Warehouse / Charlie Chalks use Tube clamps to erect the framework of the playarea, Handrails / Guardrails are another popular use of Key Clamps / Tubeclamps. We have even designed a bed for Linda Barker, Details Here: | 
