Screw Length (including the half-countersunk head height): 25mm
Drive Size: #3, No.3
Head Diameter: 10.87mm(min)--11.3mm (max)
Material: 304 Stainless Steel 18-8 that you will probably see in your house 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.