Artifex Engineering Hinge Laboratory Jack

These heavy duty jacks provide a sturdy mount to practically any load seen on an optical table. Four extra wide hinges provide robust support even while positioning vertical loads. The hinges are designed to ensure parallelism between the two plates. A wide selection of threaded and clearance holes are available on the top and bottom plates for flexible positioning. * Four extra wide hinges minimize twisting, tilting and bouncing during elevation. * Top and bottom plates are fitted with 1/4-20 (M6) threaded and clearance holes.