Regal Castors manufactures Nylon Plastic with Metal System. Regal Castors manufactures and exports Castors, Castor Wheels & Chair Bases used in various applications like Chairs, Modular Furniture, Computer Tables, Trolleys, Centre Table, Display Stands, Drawer Units, Pedestal Tables, Shoe Racks, etc. Nylon Plastic Socket with Metal System is available in the size of 12.5 mm push type nylon stem with metal insert.