VIEW IMAGE Hollow Screw Jack Hollow Screw Jack Item No: SG-HSJ-02 Thread 4TPI Finish Paint/EZP/Hot Dip Galvanized Tube OD (mm) 32, 34, 38 mm Total Length (mm) 400, 500, 600, 700, 800 Plate Size 150*150*5, 150*150*6mm Jack Nut Casted and Forged
