Features: 300PCS Personal Computer Screw Standoffs Set Kit for Hard Drive Computer Case Motherboard Fan Power Graphics. Computer fixed screws assortment kit, standoffs kit, conventional copper column, insulating pad, total 300pcs PC mounting accessory. Package Includes: PC case, power supply, motherboard, hard drives, fan, brass standoffs mounting screws, and insulation washers. Perfect for PC 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. Specifications: Type: 300PCS Computer Screw Kit Quantity: 300pcs Color: As the photo shows Material: Metal(screws) + plastic (box) Suitable For Hard Drive Computer Case Motherboard Package includes: 24 x Mainboard Brass Standoffs Screws (M3*6 + 6) 46 x Mainboard Fixed Screws (M3*5) 48 x Mainboard Insulation Gasket (Red M3*8) 43 x CD-ROM Set Screws (M3*4) 43 x Hard drive Screws (M3.5*5) 6 x Chassis Hand Twist Screws (Silver M3.5*5) 6 x Chassis Hand Twist Screw (Black M3.5*5) 24 x Chassis High-Strength Screw (M3.5*6) 30 x Conventional Chassis Fan Retaining Screw (Nickel Plated M5*10) 30 x Conventional Chassis Fans Retaining Screw (Black M5*10)