Bolt, High strength bolts, Screw
Spring washers are used for anti loosening, while flat washers do not have anti loosening function. Flat washers can only increase the contact area. Flat washers are only used to increase the contact area, and spring washers can prevent loosening. For example, the bolts connecting the motor and the base usually require the addition of spring washers, because if the motor vibrates without a spring washer, the nut will loosen. Generally speaking, spring washers are installed on fasteners on vibration equipment, and gaskets are usually not required on flanges! The addition of spring gaskets on the flange is related to the circulating medium in the pipeline. If it is easy to generate pulses, it is best to add spring washers and high-speed fluid, as the diameter changes frequently. Don't generalize. On some valves, spring washers need to be added to the packing box gland flange. Spring washers are fast, easy to optimize, automated, and optional. The flat pad is used to increase the fastening contact area. Spring pads can be used in vibration areas to prevent loosening. PVC flanges can be tightened without the need for spring washers. Flat pads are used to increase the contact area and prevent friction between bolts and workpieces; Spring pads are used to prevent loosening due to vibration; The main function of a flat washer is to protect the surface of the connector and prevent bolts and nuts from scratching the surface of the workpiece during tightening; The spring pad is anti loosening. However, spring pads cannot be used for some important connections, for example, spring pads mainly rely on pressure to generate friction to transmit power. It can reduce the stiffness of the connection, but it is prone to accidents. Spring washers are not required. When the strength of the connector is low, use flat washers or flange bolts to increase the contact area. The flat pad is mainly used to increase the contact area. The spring washer is anti loosening. When vibration, pulses, and medium temperature fluctuations are significant, spring washers must be used. Spring pads can increase preload, but do not prevent loosening
