【Ample quantity】 you will receive 30 pieces thumbscrews, 10 pcs M4 x 10 mm, 10pcs M5 x 12 mm, M6 x 16 mm, which can be installed in any place you need, They are packaged in a small box for easy storage, making it more convenient for your daily use and replacement. 【Quality material】 the vesa mount screws are made of quality carbon steel+ ABS, with good hardness, strength, corrosion resistance and wear resistance; It is a fastening accessory that can be applied for a long time and could be reusable for most different purposes. 【Wide Application】Used in metal working, fix microphone stand, attach TV and computer monitors, auto body shops projects, mechanical equipment, drill press, lathe machine, table saw, workshop machinery, door, cabinet, the rack bracketetc. 【Easy to install】 the grip knob thumb screw adopts a screw-in design, makes it more convenient for you to use,which is easy to install; The surface is smooth and clean, making you feel more comfortable to hold and store. 【Warm notice】 it is recommended that you need washers as gaskets when installing some monitors to prevent affect to the computer monitor; The length of the screw part is 10 mm/12mm/16mm, which may bottom out on some computer monitors; You just need a layer of buffer to prevent direct contact in some cases.