SUITABLE SIZE: 15pcs M4, 15pcs M5, 15pcs M6, 15pcs M8. Different specifications can be applied to a wide variety of electrical devices. These wing nuts are stored in a pocket for you to keep them easily. HIGH-QUALITY MATERIALS: the wing nut is made of stainless steel: sturdy and durable, not easy to damage and deform , long service life. EXCELLENT FINISH: The wing nut has a unique butterfly design. The head is shaped like a wing, which is very pretty. It not only fastens the mother, but also has a good decoration. EASY TO INSTALL: The wing bolts are relatively easy to install, our nut looks like an airplane wing, so they are easy to assemble and do not require any additional tools to turn the nut by hand. WIDELY WIDENED: The wing nut is a helper in people's daily lives. It is widely used in home and office equipment, communication equipment, bridge construction, aerospace, mechanical engineering, LED lamps, displays, and installation and clamping to ensure the daily use of fasteners in other machines.