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 …

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 …

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 …

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 …

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 …

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 …

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 …

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 …

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® …

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 …