Diameter of the flange washer: 14.2mm (max); Head Height: 5.7mm (min) -6mm (max)
Material: 304 Stainless Steel 18-8 that you will probably see in your home or workplace. It's used for a wide variety of home and commercial applications. Because of its slightly higher strength and wear resistance than type 316, it's also used for nuts, bolts, screws and other fasteners.