Similar International Standards
ANSI/BHMA A156.16-2019BHMA (Builders Hardware Manufacturers Association) / ANSI (American National Standards Institute), USA
HighCurrent
For Auxiliary Hardware
Specifies requirements for flush bolts, including materials, dimensions, strength, and cycle testing.
BS EN 12051:2000BSI (British Standards Institution) / CEN (European Committee for Standardization), UK/Europe
HighCurrent
Building hardware. Door and window bolts. Requirements and test methods
Covers performance requirements for various door bolts, including flush bolts, with a detailed grading system.
AS 2378-1991Standards Australia, Australia
MediumWithdrawn
Flush bolts
Provided specifications for flush bolts, but is now superseded by a broader lockset and hardware standard.
Key Differences
≠IS 5187 provides a single set of requirements, whereas modern standards like BS EN 12051 and ANSI/BHMA A156.16 use a performance grading system (e.g., Grade 1/2/3 or a multi-digit classification code) to specify suitability for different applications (light-duty vs. heavy-duty commercial).
≠The endurance testing in IS 5187 is a fixed 10,000 cycles. In contrast, ANSI/BHMA A156.16 requires up to 100,000 cycles for its highest grade, and BS EN 12051 has multiple durability grades (e.g., 10,000 and 25,000 cycles).
≠IS 5187 is prescriptive about materials (e.g., specific brass and steel grades), while BS EN and ANSI/BHMA standards are performance-based, allowing any material that passes the specified strength, durability, and corrosion resistance tests.
≠International standards include specific static load and shear strength tests for the bolt, which are absent in IS 5187. For example, ANSI/BHMA A156.16 defines specific forces the bolt must withstand without failure.
Key Similarities
≈All standards cover the same fundamental product types, primarily lever-action and slide-action flush bolts designed for recessing into a door edge or face.
≈Each standard specifies and controls key dimensional characteristics like bolt throw (projection), faceplate size, and bolt diameter to ensure proper installation and function.
≈The concept of a cyclic operational test to simulate usage over time and ensure durability is a common principle, even though the number of cycles and conditions vary significantly.
≈All standards specify requirements for protective finishes to provide corrosion resistance, although the test methods and performance levels differ (e.g., IS 5187 references plating standards, while BS EN 12051 specifies hours in a salt spray test).