Description This countersunk screw set is made of premium material, which can withstand long-lasting use. Features the carbon steel material, which has high durability, not easy to deform. Fine workmanship, practicality. This countersunk screw set will make the repair and fix easier and smoother. Features -Color:Black -Material:Carbon steel -Size:13.00X6.50X2.00cm/5.11X2.55X0.79in - Countersunk design, neat and clean, the surface is even after installation. - Multiple sizes combinations to meet your daily needs. All screw sizes are neatly marked and prevent compartment mixing. - Made of premium carbon steel materials, durable and long service life. - Compatible with all general purpose laptops, don't worry about laptop case screws coming loose again. - Suitable for fixed installation or maintenance of general SSD, hard disk, computer case, power supply, graphics card, motherboard, fan, CD-ROM drive, .