Ball joints for grid stands,, with 18 tapped holes M12, chromed steel, 1 unit(s)Ball joints for grid stands,, with 18 tapped holes M12, chromed steel Material: steel (chrome plated). The Lenz range of grid stands consists of standardised components such as round bars and rectangular diagonals that can be connected in a wide variety of ways with ball joints and disc joints to form stable grid stand constructions. Foot plates, swivel castors and flat flange brackets are also available as options. For secure fastening of flat flange