How to select the materials of bolts and nuts?

Many customers ask such questions: how to choose the materials of bolts and nuts? Obviously, such customers don't know much about the raw materials of nuts. If you have any questions, please call our sales number!

The mechanical function requirements of bolts and nuts are different

① The mechanical function of the nut mainly depends on the hardness and height of the nut and the wall thickness of the nut. Therefore, the requirement for data is not high. Of course, if there is a requirement for the durability of the nut, a higher level of data should also be used. For example, if the chemical fastener nut has requirements on the durability, the higher-grade data will be regulated.

② The higher the functional grade, the higher the plastic target required by the bolt. The lower the tempering temperature is, the lower the strength requirement is, but the plasticity and durability are not satisfied. In the fastener inspection, brittle fracture is determined as unqualified. Steel structure bolt also has higher tensile strength, which is to ensure the plastic resistance of the bolt.