knurled Thumb Nuts,knurled Screw, 10PCS/LOT M3 M4*6/8/10/12/16/20 Colourful Aluminum Knurled Head Step Computer Case Screw Hand Tighten Thumb Screws (Color : RED, Size : M4x10)

Colourful Aluminum Knurled Head Computer Case Screw M3 M4*6/8/10/12/16/20

• Reasonable Design：Accurate and neat thread design provides superior holding power and preventing the insert nuts from either turning or pulling out in all applications. Round and Flat head is super smooth without any burr.
• Thumb screws Made of 304 stainless steel +aluminum alloy with excellent and extending the long service time. High strength for your long time use, hard to deform or break. They are also applied in wet environment because of excellent performance of .
• Perfect for PC case, power supply, motherboard, hard drives, fan and floppy/CD-ROM/DVD-ROM drives fixed installation
• NO TOOLS REQUIRED - Convenient to use, easy to install without need any tools, twist by hand directly to install or disassembly.
• 【Wide Range of Applications】---- Hand-made thumbscrews are suitable for mechanical equipment, tools, automobiles, instrumentation, industrial equipment, household appliances, furniture manufacturing, and testing equipment, where screws need to be loosened frequently.