Screw Size: M12Overall Length: 130mmEye Nut Height: 49mmInner diameter of the ring: 29mmSleeve Inner Diameter: 12mmSleeve Length: 60mmSuggested Hole Size: 16mm Dia.Total Weight: 410gMaterials: 304 Stainless SteelApplication: Concrete and masonryPackage Content: 2 x pcs M12 x 90 Expansion Eye Bolt