10.9S steel structure shear bolts fall within the category of high-strength bolts; they are capable of withstanding significant tensile and shear forces, ensuring the stability of steel structures under complex stress conditions.
From a technical perspective, the unique design feature of 10.9S steel structure shear bolts lies in the torque-shear structure incorporated into their shank. During installation, when the bolt reaches the predetermined torque value, the torsional shear section fractures under the applied force, thereby providing a clear indication that the bolt has been securely fastened. This design not only improves installation efficiency but also prevents connection failure caused by excessive or insufficient torque. Furthermore, the bolt’s surface has undergone an oxidation and blackening treatment, enhancing its corrosion resistance and extending its service life.

10.9S steel structure torsional shear bolts are widely used in heavy-duty steel structure projects such as bridges, railway tracks and high-voltage equipment. In bridge construction, they are used to connect key components such as steel girders and columns, ensuring the overall stability and safety of the bridge. In railway track laying, torsional shear bolts are used to secure the rails to the sleepers, ensuring a smooth ride for trains. In the field of high-voltage equipment, these bolts are used to connect various metal components, ensuring the reliable operation of the equipment in high-voltage environments.

When selecting and using 10.9S steel structure torsional shear bolts, the following points should be noted:
Firstly, select the appropriate specifications and models, such as M30, based on the specific requirements of the project;
Secondly, ensure that the material and strength grade of the bolts comply with the design requirements;
Finally, during installation, strictly adhere to the operating procedures to ensure that the tightening torque of the bolts reaches the specified value, thereby guaranteeing the reliability of the connection.