Butterfly screw: The butterfly design of the screw head will increase the side bearing surface and make it easier to fasten. It can make your work easier. Premium Material: They are made of 201 stainless steel whose surface is passivated, these studs are not subject to corrosion, rust or oxidation. It is shiny and has smooth threads. High quality surface, clean and nice and weaves smoothly. A good replacement for a clamp screw on a mini clamp so you don’t need to use a screwdriver in the heat of the photoshoot. Convenient to Use: This wing nut has a wing on each side, you can easily tighten or loosen these wing nuts with your bare hands without using any tools. Easy to install and remove, can be used repeatedly. Beautiful shape: The thread is very precise and clean. The head is in the shape of a wing which is quite beautiful and makes the bolts not only a fixation but also a good decoration. Widely Applicable: The thumbscrew is widely used in indoor enclosures and office equipment,