Why BHMA Certified?

In buying products with the BHMA Certified Secure Home™ label, you can be assured that you are purchasing products that have been tested and certified to the highest performance standards when it comes to the safety of your home, and that the hardware will perform to your expectations.

Security Strength Tests

Security tests determine how strong the products are, and make sure that the hardware is capable of withstanding excessive forces and impacts – from a possible intruder, for example. Security tests for locks and deadbolts include:

Locks:

Testing for the strength of Lever or Knob Torque, Lever or Knob Pull and Bolt Strength

Dead Latch and Strike Impact Test

Locked Lever or Knob Catch Attack Test

Latch Bolt End Pressure

Deadbolts:

Cylinder Vertical Impact Test

Cylinder Face Impact Test

Bolt Impact Test

Bolt Compressive Load

For a deadbolt to receive an ‘A’ rating in security, it is subjected to a Cylinder Vertical Impact Test, which mimics a ram or sledge hammer attack by requiring a 22-pound weight to hit a locked cylinder 10 consecutive times from a height of 40 inches.

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Durability Tests

Durability tests make sure that your hardware functions properly again and again, over time. To test a product’s durability, it goes through three different types of tests: operation, cycling and performance.

Operation tests make sure, for instance, that your hardware operates when there’s unwanted loading on the door, which can be caused by a tight door seal or by something heavy hanging on the door knob or lever. Lock and Deadbolt Operation Tests include:

Locks:

Latch Bolt

Projection tests

Force to Retract Unloaded and Loaded Bolt Test

Force to Latch Door Test

Deadbolts:

Force to Retract Unloaded and Loaded Bolt Test

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In the Force to Retract Preloaded Bolt Test, for example, a 30-pound force is applied to the door and latch bolt to verify that the trim will release the latch within a reasonable force.

Cycle tests measure how well your door knob or lever can withstand repeated, long-term usage. Locks with an ‘A’ rating in Durability are subjected to 400,000 cycles of unlatching, opening, closing and re-latching. The cycling test occurs all day and all night over many weeks, depending on the rating.

 

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Finish Tests

Who knew that there was more to the finish of a product than aesthetics? Finish tests make sure that the surface—or coating—of your hardware does not soften, bubble, peel, discolor or corrode when exposed to certain elements and environments. Certified locksets and deadbolts undergo the following finish tests:

Salt Spray Test

Humidity Test

Pencil Hardness Test

Perspiration Test

Ultra Violet Light & Condensation Test

The UV test, for example, serves as a ‘tanning bed’ for finishes, where products are exposed to tanning bed-like conditions for several house. In fact, a product with an ‘A’ rating in Finish is exposed to 288 hours or UV light – this is equivalent of having your lock or deadbolt exposed to several years of both UV rays and humidity!

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