This adjustable screw jack (leveling screw / telescopic screw) is designed for fine height adjustment and leveling of timber frame and wood structure buildings. Made of high-quality steel, it offers excellent load-bearing performance. The 20mm diameter and 250mm length specifications are suitable for connection and adjustment of various timber beams and post bases. Easy to install, it effectively enhances structural stability. Whether for timber house construction, deck building, or outdoor wood structure maintenance, it provides precise height adjustment and extends the service life of the building.

