The hand knob and the shell employ a screwed joint, which can reach the self-hold request of the device.
手柄与外壳采用螺纹连接，可以满足机构的自锁要求。
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This paper synthetically discusses and analyzes the self-hold nuts being used widely in home and abroad, especially the structures and applications of four new types of nuts with new designs.
Dark patterns also can be addressed on a self-regulatory basis, but only if organizations hold themselves accountable, not just to legal requirements but also to industry best practices and standards.