1、This kit includes 300pcs hex countersunk screws and 180pcs hex nuts in size of M2, M5, M 2、Made of carbon steel material, high hardness and durable. 3、Countersunk head design makes these screws align with the mounting surface, beautiful and anti-scratch. 4、Firm connection, not easy to fall off. 5、Come with a storage case, convenient to store and carry with you. Features: This kit includes 300pcs hex countersunk screws and 180pcs hex nuts in size of M2, M 2.5, M 3. Made of carbon steel material, high hardness and durable. Countersunk head design makes these screws align with the mounting surface, beautiful and anti-scratch. Firm connection, not easy to fall off. Come with a storage case, convenient to store and carry with you. Specification: Material: Carbon steel Surface Treatment: Quenching + Yellow zinc plating Type: Hexagonal head Quantity: 480pcs Screw Size: M2*6, M2*8, M2*10, M2*12, M 2.5*6, M 2.5*8, M 2.5*10, M 2.5*12, M3*6, M3*8, M3*10, M3*12 (25pcs per size) Nut Size: M2, M 2.5, M3 (60pcs per size) Package Weight: Approx. 198g   Package list: 300 * Hex Countersunk Screws 180 * Hex Nuts 1 * Plastic Storage Case