Package Included: :You will get 20 pieces M4 x 10mm threaded thumb screws, which can be installed in any place you need for daily use and replacement. The finger screw of the handle knob adopts the screw-in knurled plastic handle, which is convenient to grip and easy to install. Sturdy and Durable Material: :Our round head finger screw is made of high quality carbon steel, which is characterized by high strength, corrosion resistance and good stability. The round head is made of plastic, which feels comfortable, protects the inner screws well and can be used for a long time. At the same time, plastic round heads can also serve as insulation when used in electronic devices. Wide Application: :Our finger screws are well made, beautiful and practical. They can be widely used in mechanical equipment, electronic equipment, communication equipment, hardware, furniture decoration and other related industries. Bring convenience to your life. You just need to screw it in and tighten it; it is recommended to measure or estimate the size before installation to avoid installation errors due to the wrong size. Warm Tips: : We recommend that when installing part of the monitor, you need washers as spacers to avoid damaging the computer monitor. The length of the screw part is 10 mm. Some computer monitors may cause a low point. In some cases, you only need a layer of padding to avoid direct contact.