“Bolt-through fixings remain the gold standard for handle retention. For retrofit scenarios, threaded inserts paired with anti-rotation plates offer a cost-effective, long-term solution.”
— John Smith, Lead Engineer at Global Hardware Solutions LLC
Prioritize Bolt-Through Systems: Ideal for commercial or high-use residential settings.
Material Compatibility: Match bolt/screw materials to door composition (e.g., stainless steel for exterior doors).
Regular Maintenance: Inspect handles biannually for loosening and re-torque bolts to 4–6 Nm.
Prioritize ANSI/BHMA Grade 2 or higher certifications for commercial-grade durability.
For wooden doors, pre-drill pilot holes to prevent splitting during installation.
Regularly lubricate locks with graphite powder to maintain smooth operation.
For mixed-brand installations, use universal spindle adapters (ISO 1303-1 compliant) to ensure cross-manufacturer compatibility without compromising warranty terms.
For historic doors, opt for handles with adjustable backset and universal spindle designs to minimize structural modifications.
Combi Locks represent a versatile and evolving solution in access control, balancing security with user convenience. Businesses should prioritize models with anti-tamper alarms, weatherproof ratings (IP65+), and backward compatibility for retrofitting existing systems.
Unlocking Security: The Comprehensive Guide to Combi Locks in Modern Access Control Read More »
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