PERFECT WING NUTS:Stainless steel wing nuts, there are 4 sizes: M4, M5, M6, M8, each size has 15 nuts, enough quantity and multiple sizes to meet your different needs, stored in a transparent storage box, very convenient Carry, access and store. DURABLE MATERIAL:Butterfly Wing Nuts are made of high-quality stainless steel, durable, corrosion-resistant, easy to operate, and make your life easier. EXQUISITE DESIGN:The butterfly-shaped design makes this nut more convenient to use. It can be installed by hand without the use of other tools.Easily tightened and removed by hand.Suitable for mechanical equipment, electronic equipment, communication equipment, hardware lighting, building bridges, furniture decoration, etc. EASY TO USE:Wing nuts with threaded holes are used in combination with matching bolts or machine screws to secure multiple parts together.The parts are kept together by a combination of their threads’ friction (including a slight elastic deformation), and compression of the