Superb Material: All replacement computer screws motherboard standoffs are made of outstanding metal, brass, fiber paper, and other materials, which are not easy to break, corrosion-resistant and rust-resistant, reusable, strong, and durable for long time use. Easy to Use: Computer screws are suitable for all types of computer motherboard screws for computer DIY installation and repair. The pc case screws have clear threads and smooth edges for easy computer use. Used as pc fan screws, pc screws, pc screw kit, laptop replacement screws, motherboard mounting screws, computer fan screws, etc. Easy to Store: All laptop screws are stored in a transparent and sturdy storage box with compartments. The ssd screws are stored separately, well organized, easy to carry and find. There is no confusion during transportation and it is convenient to use. Widely Used: Ideal choice of computer enthusiasts, professionals, or amateurs, used to install many different computer components, such as PC cases, motherboards, power supplies, fans, hard disks, floppy/CD-ROM/DVD-ROM drives, etc, fit for many brand of computer. Package Includes: 420 pcs in total, including 50 pcs flat phillips head screws(6#-32x6), 50 pcs hard drive screws(6#-32x5), 30 pcs standoffs screws(m3x6+6), 30 pcs fans retaining screws(m5x10kb), 30 pcs chassis high-strength screws(6#-32x6), 50 pcs ssd screws(m3x5), 50 pcs ssd screws(m3x3), 70 pcs insulating gaskets(m3x8), 50 pcs main board fixed screws(m3x5x7), 10 pcs thumbscrews(6#-32x6), enough for computer repair in daily life.