Forged Jack Nut Adjustable Screw

The Screw Jack is made from a 1 3/8 inch Solid Stem, or a 1 3/8 inch Hollow Tube, with 6" x 6" base and a large wing nut.Thread Screw jacks are the accessory used to safely adjust the scaffold legs. This may be necessary when different working heights are encountered or when the scaffold is mounted on sloped surfaces.