Standard: GB845 / DIN 7981; Thread Size: 2.9mm (#4, No.4)
Screw Length: 1/4 inch (including the self tapping point)
Head Diameter: 5.3mm to 5.6mm; Head Diameter: 2.1mm to 2.4mm
Phillips Drive Size: #1; Package: 100 PCS
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.