When installing deadbolts on the exterior doors, using a standard mortise-lock is used, if the door does not have a deadbolt already attached. The new installation may need to use new deadbolts or it may need to be converted to an existing lock after which the existing deadbolt may need to be replaced with a new one.

Door Knob Lock Cylinder Systems can be a great way to secure your doors from unwanted intruders. Most people are very aware of this, however not many are familiar with the many different door lock varieties available. Choosing the right door lock for your needs is extremely important.

Door hardware refers to hardware that is widely used in wooden doors, glass doors, metal doors, etc., including door closers, floor springs, door hinges, door bolts,door locks, door stops, etc. Among them, door control hardware is a daily metal product that is extremely important for people's daily

A CE door closer is a great security device to add to your home. With this wonderful device you will have the peace of mind knowing that any door is properly secured. With many different styles of concealed door closer available, this is one of the best selections to make.

American National Standard Institute (ANSI) ANSI 156.4 ItemANSI 156.4 Cycle-testWithout Buffer FunctionGrade 1-2,000,000Grade 2-1,000,000Grade 3-500,000Buffer FunctionGrade 1-1,500,000Grade 2-750,000Grade 3-500,000Fire TestPass UL 10 C 3 hours fir

BS EN 1154:1997 -The European standard for the performance of controlled door closing devices. Introduce in detail the product type, usage classification, test period, test period, door quality, corrosion resistance, as well as product definition, product performance requirements, test instruments,