Retention gear pump, motor and foot screws, screw the force should be uniform, reliable connection.
紧固齿轮泵、电动机的地脚螺钉时，螺钉受力应均匀，连接可靠。
2
Wire thread insert technology is a specific technology for connection and tension, which can improve the quality of screw thread connection effectively.
钢丝螺套技术是一种特殊的连接紧固技术，可有效改善螺栓的连接条件。
3
The paper discussed harm, reason, measures, and application of screw fastener connection loosening, in order to attach importance to this problem.