When the fastening force of bolts and nuts is insufficient, take the following measures: Check the fastening process: Ensure that each bolt is tightened gradually and in the correct order during the fastening process. If a bolt is over-tightened first, other bolts may not be properly tightened. Check bolts and nuts: Check whether the bolts and nuts match the design requirements, including size, material and surface lubrication conditions. Ensure that the correct thread type and standard are used, as well as the appropriate dimensions. Check the status of fasteners: Check the status of bolts, nuts and connectors, including damage, deformation or wear. If the fastener is damaged or deformed, it needs to be replaced with a new fastener. Adjust torque: Use a torque wrench to re-tighten the connector and ensure that the applied torque meets the design requirements. Depending on the situation, it may be necessary to increase or decrease the amount of torque to achieve the appropriate tightening force. Use additives: Apply appropriate lubricants or additives to the threads of bolts and nuts as needed. This reduces friction and makes the fastening process smoother, providing better fastening force. Use preload and Angle: For some specific applications, the preload and Angle method can be used for tightening. The method ensures that the required fastening force is achieved by first tightening according to the preset force, and then further tightening according to the design Angle. If the above measures do not solve the problem, it is recommended to consult a professional engineer or manufacturer for more detailed advice and support.
