FUNCTION：The screw jack is used as a stating base for a scaffold. It has an adjsutable height to allow for compensation on uneven grades so that a level scaffold is always attainable.
SPECIFICATION：Various sizes from 500mm to maxium 914mm or customized.
MAIN MATERIAL：Carbon Struture Steel Grade Q235 meething AS1576 standards
MANUFACTURING PROCESS：Punching, drilling,welding, galvanzing, etc.
QUALITY GUARANTEE：over 30 years.
East Grace Tech is one of the professional manufacturers and suppliers of high quality scaffold galvanized hollow steel base adjustable screw jacks plates made in China. Equipped with many highly qualified employees in our factory, we warmly welcome you to get the top quality products with high strength from us.