1These miniature screws are made of alloy steel, which has good rust and oxidation resistance. 2The kit contains screws of M2, M2.5, and M3, and the number is sufficient for various maintenance operations. 3These screws are cross type, which is easy to tighten and loosen, and the operation is more convenient. 4The screw kit contains the screws required for most types of computers and can be accessed at any time. 5Suitable for installation and maintenance of chassis, power supplies, motherboards, hard drives, etc., suitable for PC assembly enthusiasts. Item Type: Computer Screws KitMaterial: Alloy steelScrew Type: Cross typeSpecifications: M2 x 3 black, M2 x 4 black, M2 x 5 black, M2 x 6 black, M2 x 8 black, M2 x 10 black, M2 x 2 nickel plating, M2 x 3 nickel plating, M2.5 x 4 nickel plating, M3 x 4 nickel plating, M2.5 x 4 black, M2.5 x 5 black, M2.5 x 6 black, M2.5 x 8 black, M3 x 4 black, M3 x 5 black, M3 x 6 black , M3 x 8 black, 20pcs of each typePurpose: Suitable for PC case, power supply, motherboard, hard disk, fan and floppy drive CD-ROM DVD-ROM drive fixed installation 360 x Computer Screws Kit(20pcs of each type) The product contains small parts, please keep away from children to prevent accidental ingestion.