Auto-release is only available for privacy function , which different from traditional privacy lock ,traditional unlock way is unlock by turn -piece.Auto-release is insider person can unlock door lever by handling lever and lock it by pressing push button,very convenient .
2) Why do you use Concealed screw mount?
Concealed screw look pretty .
Installation instruction :
Zhongshan Langnuo Hardware Manufacture Co., Ltd., as one of the largest door lock manufacturers in China, is located at the internationally famous hardware industry center—Xiaolan town, Zhongshan City, Guangdong Province. Our own brand "BEIXI" is among the top 10 brands in the domestic market. Our products include various tubular and cylindrical knob sets and lever sets, deadbolts, mortise locks, door handles, entrance gripset, as well as all kinds of door lock accessories. All of our products have met Euro profile and ANSI Grade 3 standard.