In front of the lock forms on the market, many consumers are confused; don't know how to choose the stainless steel door lock to be both safe and durable?

Hinges manufactured accordance with ANSI / BHMA A 156.1.Dimension & tolerances confirm to ANSI-A 156.7.Full Mortise, Square Corner, Standard weight template hinge.

D&D Hardware: ANSI Grade 1 Door Hinge
Tested to over 2,500,000 cycles = Durability
UL Listed : 3 hours Fire Rated, Suitable for Fire/Smoke Resistant Doors
For Metal Doors, Fire rated Doors, Wooden Doors etc.
Suitable for Education, Healthcare, Hospitality and Commercial Applications.

Door hardware has a very important position in the modern complex function construction project.
Standardized and professional hardware plays an important role in ensuring the operation, safe escape, security, environmental comfort and aesthetic of a building.
8 considerations of configuration (Core application technology in the industry) as below

To allow your handle-less closet door to remain shut, you will want to install a closet door ball catch. Closet door ball catches come in many sizes and finishes. Choose the one that matches the style of your home.

The door coordinator is a locking mechanism arranged on a locking shaft and a small shaft. One end of the locking plate of the locking mechanism is in contact with the inner end of the release shaft. The outer end of the release shaft is a touch end which can be extended outside the shell and touched by a door leaf. One end of the rocker arm is arranged on the locking shaft, the other end is provided with a touch device which can be touched by another door leaf, and the locking shaft and the small shaft are respectively provided with a locking recovery torsion spring. The utility model has a simple and compact structure, solves the problem of the sequence of closing the double fire doors, and makes the fire doors play a reliable role of fire prevention and partition. When the double fire doors are closed, they shall be closed in order to ensure their fire and smoke prevention functions. The fire door can be closed as required to meet the fire protection requirements.

When it comes to doors, hinges is very important. Their style and functionality have a huge effect on the performance of your doors. The good news is that a wide range of hinge options are available, so there's an excellent chance there's a hinge out there that's right for your application.

Adding a viewer or peephole to your door is a simple project. There are many styles and brands of door viewers to choose from, including models with up to a 200-degree viewing range, allowing you to see almost everything on the other side of the door.
This guide provides step-by-step instructions that show you how to install a peephole in your front door in an hour or less.

Fire rated for use on single doors the Marathon Fire Door Kit is a system developed as part of a half hour sliding fire door assembly to BS 476: Part 22: 1987, and should be installed on the non-fire risk side of an aperture.

Fire Exit Hardware is an exit device which is tested for both panic and fire conditions and is required to be used on fire doors where panic hardware is required by code or desired for durability. Since fire doors require positive-latching, fire exit hardware does not incorporate mechanical dogging. If a push/pull function is desired for a fire door, electric latch retraction hardware may be installed, as long as the latch projects automatically upon fire alarm.