[Styles]: 10 different computer screws, perfect for computer case, power supply, motherboard, hard drives, fan and floppy/CD-ROM drives fixed installation. [Material]:Made of high quality brass, steel and fiber paper, steel with nickel and black zinc plated which have superior rust resistance and oxidation resistance. [Widely Applications]:Perfect for computer case, power supply, motherboard, hard drives, fan and floppy/CD-ROM/DVD-ROM drives fixed installation, they are placed in a box, easy to find and use. [DIY Assortment Kit]:Whether you are a PC hobbyist or a professional , this replacement screw accessories is a necessity and the should last for several projects. [Package included]:360 pieces computer case, power supply, motherboard, hard drives, fan, brass standoffs mounting screws and insulation washers.(We do not the stickers on the picture) Colour:Photo Color Material:metal Package Contents: 10 * Thumb screws 6#-32*6 (Black) 30 * Chassis high-strength screws 6#-32*6 50 * Hard drive screws 6#-32*5 30 * Chassis fans retaining screws x 10 (Silver) 50 * Main board fixed screws x 5 10 * Thumb screws 6#-32*6 (Silver) 50 * CD-ROM set screws x 4 30 * Brass standoffs screws x 6 + 6 30 * Chassis fans retaining screws x 10 (Black) 70 * Main board insulation washers x 8 Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.