M30 double nut flat washer, what is the function of square washer + the flat washer produced is as firm as a rock

The hardware responsible for the production of m30 double nut flat washers said that there are too many types of washers. We generally contact flat washers. Flat washers are a commonly used type of washers, and square washers are also a type of flat washers. Basically, flat washers can be used in general bolts or screw connections. The shape of flat washers is generally round, but according to the needs of assembly, it can also be in other shapes, such as square washers with a square shape. The following Xiaoshuo takes everyone to see the function of the square washer: 　　 1. Expand the contact surface, reduce the stress concentration of the fastening force on the fastener, and prevent damage to the fastener.　　2. When tightening the nut, the fastener will not be scratched.　　3. Flower pads and spring pads also prevent the nut from loosening. Because of the above properties of the square gasket, it can effectively prevent water leakage and water seepage of the building structure, play a shock absorption and buffer effect, and also have a good fastening and sealing effect, so it is still widely used in life. Most of the square gaskets are now Used on construction sites. Hardware, 15 years of focus on m30 double nut flat washers, 5000 square meters production workshop, hundreds of precision processing production equipment, 20000+ sets of flat washer mold customized production experience, more than 20 Ru0026D and design engineers, flat washers stamping accuracy can reach 0.01mm, The precision of flat washers can reach 0.01mm, and 16 quality inspections strictly control the quality from raw materials layer by layer. Can quickly solve the problem of time, accuracy and quality for you!