Precautions for high-strength bolts when in use

   Bolts made of high-strength steel or that require a large preload can be called high-strength bolts. High-strength bolts are mostly used for the connection of bridges, rails, high-pressure and high-voltage equipment. The fracture of this bolt is mostly brittle. High-strength bolts used in high-pressure equipment require large prestressing in order to ensure the sealing of containers.
   Today, let's take a look at the precautions for the use of high-strength bolts:
   1. The surface of the floating rust, oil, bolt hole wall burrs, welding nodules, etc. should be cleaned up.
   2. After the contact friction surface is treated, it is necessary to meet the specified anti-scratch coefficient requirements. The high-strength bolts used should have matching nuts and washers, and should be used according to the matching when used and should not be interchanged.
   3. The friction surface of the treated components is not allowed to be stained with oil, mud and other sundries during installation.
   4. The friction surface of the component should be kept dry during installation and should not be operated in the rain.
   5. Strictly check and correct the deformation of the connected steel plate before installation.
   6. It is forbidden to hammer the bolt into the bolt during installation to prevent the bolt thread from being damaged.
   7. The electric wrench that is regularly tested during use ensures the accuracy of torque and operates in the correct tightening sequence.
   If you're looking for high-strength and high-quality fastening products, look no further than high-strength bolts. We believe that Nanjing Knetwo fastener products will be able to bring greater success to your project, and Nanjing Knetwo New Materials Co., Ltd. will also create more successful cases with integrity and quality. Let's work together to build a better future!