Product Description： The material is made of high quality 304 stainless steel. They are known for their reliable rigidity and corrosion resistance. This type of steel is able to withstand drastic weather and temperature changes including placement Including extremely wet areas. Widely used in various precision machinery industries, classified instruments, meters, electronic products, household appliances, communication products, locks, lamps, toys and so on. Specification: M4*6mm flat head screw length: 9.4mm (including head), thread length: 6mm (excluding head), thread pitch: 0.7mm thread diameter: 4mm; head diameter: 8mm; head height: 3.4mm, drive type: hexagonal socket 2.5mm, color: smooth surface. High Quality Material 304 Stainless Steel Package Included: 100 PCS Button Head Cap Bolts/Screws (M4 x 6mm)