Ansi grade the american nation standards institute ansi grading system for deadbolts was developed by the builder s hardware manufactures bhma.
Ansi grade 1 door locks.
When you see packaging bearing ansi grade 3 or 2 or 1 those numbers on door locks and deadbolts are a collaboration between ansi and the builders hardware manufacturers association.
The builders hardware manufacturers association bhma has been in the business of developing and publishing american national standards for hardware since 1983.
Budget becomes important here as well since grade 1 locks are the most expensive.
This grading system ranges from 1 the highest grade to 3 the lowest grade.
Answers to one of the most common questions about builders hardware.
4 4 out of 5 stars 37.
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Grade 1 door knobs units need to withstand 800 000 cycles 6 door strikes and a 360 pound weight test.
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It factors in longevity of the lock toughness and latch length.
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In order to qualify for an ansi grade 2 rating each locks has to go through 400 000 opening and closing cycles 4 strikes to the door with.
Grade 1 deadbolts need.
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It is often reserved for locks.
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Grade 1 locks and deadbolts can be used on homes when you want the best security but they tend to be limited in style and finish options.
Asni grade 2 locks.
Ansi grade 1 best deadbolts door locks the home depot store finder.
Ansi grade 2 locks are rated by ansi for commercial usage but in areas where there is standard traffic flow.