NINGBO BONRIO IMPORT & EXPORT CO., LTD. is an exporting company whom has own manufactory. We have long terms business relationship with China National Testing Center ( the lab has ISO17025 Cert. & NADCAP certification for material testing ).
Under the load change, vibration and impact during the working process of bolted parts
The commonly used bolt locking structure can be divided into detachable anti loose structure and permanent anti loose structure.
Note: if there is no standard screw and it belongs to non-standard part, it needs to provide drawings.