Adjustment Bolt Bolt Material Steel Bolt Finish Zinc Plated Center Hole Dia 13.50mm Use with Screw Size M12 Bolt Thread Size M30x1.5 Bolt Outside Dia 45.00mm Min Bolt Height 22.00mm Max Bolt Height 29.00mm Shoulder Height 7.00mm Spanner Notch Width 7.00mm Spanner Notch Depth 2.00mm Max Down Force 120 kN