Thread Size: 5/16 inch; Thread Pitch: 18 threads per inch (TPI)
Head Diameter: 0.688 inch to 0.719 inch; Head Height: 0.156 inch to 0.176 inch
Screw Length (include the square neck): 4-1/2 inch
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.