Head Diameter: 6.4mm (min)--6.9mm (max); Head Height: 1.75mm (min)---2.05mm(max)
Material: 304 Stainless Steel 18-8 that you will probably see in your pans and cookery tools. 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.