Features 1、These screws were zinc plated for better corrosion and rust resistance. 2、100 pcs screws a set can fulfilled your quantity needs. 3、Made of premium material,durable and has long service life. 4、These are a kind of partially threaded self-tapping screw for various needs. 5、Widely used in electronic,appliance,machinery and other scenarios. Specification Features: These screws were zinc plated for better corrosion and rust resistance. 100 pcs screws a set can fulfilled your quantity needs. Made of premium material,durable and has long service life. These are a kind of partially threaded self-tapping screw for various needs. Widely used in electronic,appliance,machinery and other scenarios. Specification: Thread Diameter:4mm / 0.16in Effective Length:25mm / 0.98in Material:Zinc Plated Package List: 100 x Screw Package List