Head Diameter: 19.35mm (min)-20.65mm (max); Head Height: 4.12mm (min)-4.88mm (max); Neck Height: 4.4mm (min)-5.6mm (max)
Used widely in the home, office appliance, aluminum profile installation, communication equipments, ship assembly and other machinery industry, equipment, quadcopter, DIY crafts, home repairing and so on
Screw Length: 80mm (including the neck part)
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.