Quality precautions and safety technical measures of high strength bolts

The surface of bolts and bolts shall be free of rust.

2. After treatment, the contact friction surface should meet the requirements of anti scuffing coefficient. The high-strength bolts used shall be matched with nuts and washers, which shall be used as a complete set and shall not be interchanged.

3. The friction surface of the treated components shall not be stained with oil, soil and other impurities during installation.

4. During installation, the friction surface of the components should be kept dry and should not be operated in the rain.

5. Check and correct the deformation of the connected steel plate before installation.

6. It is forbidden to hammer into the bolt during installation to prevent the bolt thread from being damaged.

7. When using, the electric wrench should be tested regularly to ensure the accuracy of torque and operate according to the correct tightening sequence.

Main safety technical measures of high strength bolt

1. The size of spanner should be consistent with the size of nut, and sleeve should not be added to small spanner. The dead spanner should be used in high-altitude operation. If the flexible wrench is used, the rope should be used to fasten the safety belt.

2. When assembling the connecting bolts of steel members, it is strictly forbidden to insert the connection surface with hands or probe the screw holes. When taking and placing the iron pad plate, the fingers should be placed on both sides of the iron pad plate.

The company's main business: high strength bolts, high strength nuts, steel structure bolts, steel structure nuts, grid sealing plate, grid bolts and other special-shaped parts.