This countersunk screw set is made of , which can withstand use. Features the steel material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color: Black -Material: steel -Size: 1.00X1.00X1.00cm/0.39X0.39X0.39in - computer screws, different types of screws can meet your different needs. - Suitable for fixed installation or maintenance of general SSD, hard disk, computer case, power supply, graphics card, motherboard, fan, CD-ROM drive, . - Provides excellent resistance against rust and , not easy to crack. - Countersunk head design enables driving where it doesn't have sufficient space for wrenches. - Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Package list: 20x M2x3 countersunk screws 20x M2x4 countersunk screws 20x M2x5 countersunk screws 20x M2x6 countersunk screws 20x M2x8 countersunk screws 20x M2x10 countersunk screws 20x M2.5x4 countersunk screws 20x M2.5x5 countersunk screws 20x M2.5x6 countersunk screws 20x M2.5x8 countersunk screws 20x M3x4 countersunk screws 20x M3x5 countersunk screws 20x M3x6 countersunk screws 20x M3x8 countersunk screws 20x M2x2 flat screws 20x M2x3 flat screws 20x M2.5x4 flat screws 20x M3x4 flat screws