A heavy-duty exterior door hinge is required for use in commercial applications where the door is used as a primary entrance to the building. It is also required to ensure that the door is able to withstand extreme conditions. The best doors on the market are usually rated by one to five on a five-point scale for their strength and fire resistance.

American National Standard Institute (ANSI) ANSI 156.13 ItemANSI 156.13 Cycle-testGrade 1-1,000,000Grade 2-800,000Grade 3-800,000Fire TestPass UL 10 C 3 hours fire testAnti-corrosionSalt Spray Test 200 hours 1.SCOPE 1.1 This Standard establishes performance requirements for Mortise Locks and

American National Standard Institute (ANSI) ANSI 156.3ItemANSI 156.3 Cycle-testGrade 1-500,000Grade 2-250,000Grade 3-100,000Fire TestPass UL 10 C 3 hours fire testAnti-corrosionSalt Spray Test 200 hours 1. SCOPE 1.1 This standard establishes requirements for exit devices and trim, automatic

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

The D and D Hardware door lock have been successfully tested to all the requirement of BS EN 12209.

1. Category of useOne category is identified. Grade 1: For use by people with a high incentive to exercise care and with a small chance of mis-use. 2. DurabilityThree grades are identified according to the number of test cycles achieved. Grade 4 : 25 000 Cycles Grade 5 : 50 000 Cycles Grade 6 : 100

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,

The fire door can meet the requirements of fire stability, integrity and heat insulation within a certain period of time.There are four main uses of fire doors:1. Used as a regular door at any time;2. Provide emergency exits in the event of a fire;3. Prevent the fire from spreading in the building;4

Interior doors are ubiquitous in our daily life. They are often used as building materials, so the hardware of the door must pass the quality inspection strictly. Consumers should pay more attention to the concept of green and environmental protection, so many people choose and buy aluminum alloy in

The mortise lock is one of the components of the door lock. The mortise lock is generally used on the security door and is responsible for the security function of the door. There are many kinds of locks. There are three kinds of common mortise locks: European mortise locks, American mortice locks,