If you are looking for a professional and fan mounting screw, then your research is over here. That's because our product can meet your need. Adopted of metal material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features -Color:Black -Material:Metal -Size:3.50X0.70X0.70cm/1.38X0.28X0.28in -Diameter: 3.4mm/0.13in -These computer screws are for upgrading or fastening your computer cooling fan. -Computer screws are suitable for most cooling fan fastening, for a DIY computer building. -Made of durable metal materials to ensure long-term use without wear or deteriorating. -Provides reliable fastening effect to keep your PC case fan secure and stable. -The computer screws are suitable for both professional computer builders and DIY enthusiasts. Package list: Screws