1. Made of 304 stainless steel material which is anti-rust and anti-corrosion. It is sturdy, durable and can be used for a long time. The wing nuts made from carbon steel, surface is zinc-plated for good rust resistance.2. Precise size, easy to install and remove without any other complicated tools. 3. Widely applied to DIY handmade, home appliances and furniture, office equipment, electronic machinery, wind power industry, etc for home, factory, laboratory etc.4. Please confirm the thread size and screw groove type before purchasing it.Specification:Type 1:Product Name: Machine Screws BoltsMaterial: 304 Stainless steelModel: M4x70mmScrew Length: 70mm / 2.76-inchPitch: 0.7mm / 0.03-inchScrew Head Dia: 8mm / 0.31-inchType 2:Product Name: Wing NutsThread Size: M4 x 0.7mmSize: 23 x 9 x 10mm / 0.91 x 0.35 x 0.39-inch (L*OD*H)Package Content:10pcs x Screws Bolts30pcs x Wing Nuts
