Industry News & Engineering Insights
Explore the latest articles on architectural hardware standards, precision engineering, access control technologies, and global project case studies from TOPTEK.
TKAU6400EC vs TKAU6400RR: Choose Furniture for Replacement Doors
For a replacement order, choosing between TOPTEK TKAU6400EC and TKAU6400RR starts with the holes already in the door. EC uses an integrated...
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EN72LL Passage Mortise Locks: Specify Unlocked Doors Without a Cylinder
TOPTEK EN72LL is a passage mortise lock for doors that need latching without key-controlled access. The lever handle retracts the latch; there...
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TKAM9200 on Thicker Doors: Specify the Cylinder, Guard and Spindle Together
A thicker door changes more than the length of the fixing screws. For the TOPTEK TKAM9200 platform, the standard door thickness is...
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Australian Mortice Lock Backset: 60, 89 or 127 mm for TKAU6400
A replacement lock can have the right appearance and still put the handle in the wrong place. For a new door, the...
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Bathroom Mortise Lock Sets: EN78WCL Thumbturn and Emergency Release
A bathroom door needs to stay closed, provide privacy and allow the intended emergency access. Buying the lockcase, handles and turn/release separately...
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F04 Office Entry Mortise Lock: Specify the Outside Lever Operation
An office door may need to admit visitors freely during business hours and restrict entry later. The purchasing question is what the...
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Electric Hinge Intermittent Power: Diagnose the Fault and Order the Right Replacement
Electric hinge intermittent power does not automatically mean the hinge needs replacing. A lock that stops working as the door moves may...
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American Mortise Cylinder vs Bored Lock Cylinder: Choosing the Right Supply Configuration
The main difference between an American mortise cylinder and a bored lock cylinder is the connection to the lock. A conventional American...
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Lever Handle Spindle Length: Ordering the Right Shaft for Commercial Doors
Lever handle spindle length is an assembly dimension, not a door-thickness label. For a commercial replacement order, the shaft must fit the...
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Square Corner vs Radius Corner Hinges: Ordering the Right Fit for Commercial Doors
Quick answer: square corner vs radius corner hinges Choose square corner vs radius corner hinges by matching the leaf outline to the...
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Australian vs Scandinavian Oval Cylinder: Dimensions and Supply Options for Buyers
Quick answer: Australian vs Scandinavian oval cylinder Australian and Scandinavian oval cylinders serve different lock interfaces and should be ordered as separate...
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Lever Handle Rose Diameter: Choosing 53 mm or 55 mm for Replacement Orders
Quick answer: which lever handle rose diameter should you order? Choose a lever handle rose diameter that covers the existing opening and...
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