32/34/38/43mm OD (thread), fits with 48 & 60mm tube. Heavy duty steel construction. Base plates provide extra stability. Enables safe use on uneven ground. Galvanised for long lasting protection. 600mm in total length and 450mm adjustment. Also known as a screw jack.It can be used for all kinds of scaffolding systems, plays a supporting role at the top and bottom of the scaffold in building. Adjustable screw jack base and U head adopts Q235/345 constructional steel with high strength, the thread is not easy to slide. The jack base nut are casted with ductile cast iron with many sizes, and Zinc coated. Adjusting jack base nut and base plate adopt galvanized surface treatment to ensure the long service life and base plate welding using CO2 gas shielded arc welding with welding strength.
Scaffolding jack base and U head have the advantages of scientific structure , economic and environmental protection, cycle using,so they are long and wide applied in many fields.
The scaffolding adjustable jack base and U head have many sizes,the screw pipe diameter can range from 28mm to 43mm, the casted jack base nut can be customized to match the screw pipe.All the adjustable jack base and u head can suit well with the 48.3mm scaffolding pipe.