The Fixing Size Drawings

Installation illustration:
1. First, select the position to install the lock. Second, according to the dimension of the drawing, at the assigning position, drilling the lock hole and screw hole on the fixed board or the inside surface of the door which you will install the lock on. Then use the screws to fix the lock firmly.
2.According to the dimension of the drawing, drill round hole and square hole on the correct position of the doorframe, so that the lock tongue can be capable of expansion and contraction without hindrance
3. Fix connecting-rod according to the dimension which is required by the doorfrme to make the two lock-tongues move freely.
4. Open and close the door again and again to confirm all capabilities of the lock are fine.