2024年5月21日 · The rating system assigns an A, B, or C grade for each component. C is good, B is better, and A is the best. The best BHMA grade then is AAA. The ANSI rating is a one-number rating for a given lock or component within the lock. Residential ANSI lock grades are usually Grade 3 and Grade 2.

2024年5月13日 · What is Lock Grade 3? Lock grade 3 is the least secure of the three lock grades. It should be considered basic door hardware, for non high security situations, and is the least expensive. It is also the common lock you will find on homes.

Many ANSI/BHMA standards define different product grades for a particular hardware item. These product grades (grade 1, 2, or 3 -- with grade 1 being the highest) are: Defined by progressive levels of performance benchmarks in each applicable ANSI/BHMA standard. Also ascertained by looking at its BHMA® product number.

2024年5月7日 · A typical BHMA Standard also addresses selection of hardware appropriate for its intended use through the assignment of grades. There are generally three grades: 1, 2, and 3—with grade 1 being the highest performance. Each test (there may be as many as 15 to 20 different tests) has three levels.

2024年8月17日 · The ANSI/BHMA lock grading system is a set of standards used to evaluate the security, durability, and performance of locks. It assigns locks a grade from 1 to 3, with Grade 1 being the highest level of security and durability.

2010年5月31日 · Residential Grade locks are considered Grade 2 and Grade 3. Standard ANSI/BHMA A156.2-2003 establishes requirements for bored and preassembled locks and latches. The Standard includes general information, definitions, dimensional criteria, tests (procedures and required equipment) and their required results to meet grade standards.

2020年1月7日 · To provide economical choices when selecting the right hardware for an application, most BHMA standards include a system of three grade levels to be assigned depending on the product’s ability to pass increasingly rigorous test requirements. Grade one is the highest performance, followed by grades two and three.

BHMA is a group of industry experts who grade residential door hardware performance in the categories of Security, Durability and Finish. A grade of ‘C’ is good, ‘B’ is better, and ‘A’ is best. A grade of AAA is the best grade possible in all three categories.

BHMA is the only organization accredited by ANSI to develop and maintain performance standards for locks, closers, exit devices and other builders hardware. The BHMA Certified® Products Directory (CPD) lists all products that have been certified to …

2023年8月11日 · BHMA Certification. UL 437 is a security rating that provides a barometer for the security of a keyed lock. During the test, picking tools are used to manipulate the components of the lock device, which requires a high level of skill and practice.