In European Standard:Spring hinge, whether single or double action, embody a spring for the storage of energy but do not have a system for controlling and regulating the closing function. They provide their lowest closing power at, or near, the door closed position and, therefore, on latched doors,

Door hinge is the most common door accessory device, which connects the door frame to the door leaf and allows rotation between the two. The hinge can bear the weight of the door without causing the door to sag, and can make the door to rotate freely for a long time under the lowest frictional resis

Fire rated doors are doors that meet the requirements for fire resistance stability, integrity and insulation for a certain period of time. The use of matching door hardware can maximize the effectiveness of the fire door. So we need door hardware that also has a fireproof effect. In order to play t

Panic Exit Device are many operating functions available. The most frequently used are:

Bored locks are installed in a door with two round holes bored at right angles to one another. One hole is bored through the face of the door and is referred to as the cross bore/face bore; it holds the lock body.The other hole is bored into the edge of the lock stile of the door and is referred to

A Euro-profile cylinder is a type of cylinder used with mortice locks and are frequently found on uPVC, wooden, composite, aluminum and steel doors. Euro-profile cylinders can be installed on internal or external doors. However, the type of lock you require will depending on the door’s placement wit

It is important that the door that you choose has the UL Listed Door Hinge, as this will make it much safer for you, your family, and those who visit you. One of the most common mistakes is using cheap ball bearing hinges for interior doorways. Although these types of door hinges will work fine, they can easily break if something happens to them, such as a large impact.

American mortise locks are the best choice for commercial buildings. The quality and functions of the doors and locks will have a major impact on the safety of the building. In order to choose the appropriate American mortise lock, we need to figure out the answers to the following questions: how to

DATA SHEETSANSI/BHMA A156.1:2016AMERICAN NATIONAL STANDARD FORBUTTS AND HINGESThe Fire Protection Association (NFPA) Publication No. 80, standard for fire doors and windows, specifies the hardware requirements for fire-resistant openings with building hardware. All hardware to be installed on fire-p

DATA SHEETSANSI/BHMA A156.1:2016AMERICAN NATIONAL STANDARD FORBUTTS AND HINGES Model: DDSS001- 4.5x4.5x4.6mm-4BBGrade: 1Hinge height: 4.5 InchesDoor Weight: 150 lbs