[Features] · By providing intermediate male screws, a long stroke has been achieved. (1.5 to 2 times comparison by manufacturer) · By providing intermediate male screws, a long stroke has been achieved. (1.5 to 2 times comparison by manufacturer) · Turns an intermediate male screw to resolve problems that can occur when turning the male screw when a load is applied, such as scratches on the workpiece and slipped alignment. · When adjusting intermediate male screws, the screws in the upper and lower parts can be manipulated with minimal force, since the direction is the same and the pitch is different. · A lock screw (locking piece) to lock male threads for loosening prevention. [Applications] · For support of heavy objects, height adjustment of clamps, and suppression of chattering during cutting. · It is also ideal for support of heavy objects, height adjustment of clamps, and suppression of chattering during cutting.