types-functions

High-Security Rim Nightlatch Cylinders with 7-Pin Tumbler Arrays

Engineering Overview: Technical specifications for surface-mounted rim nightlatch replacement cylinders featuring 7 active pin tumblers.

Technical & Engineering Specifications

Format $\Phi 34$ mm Surface Rim Flange
Chambers 7-Pin High-Security Array
Standard ANSI/BHMA A156.5 Grade 1
Tailpiece Segmented 40Cr Hardened Steel

Upgrading Surface Nightlatches

Standard rim nightlatches use 5-pin cylinders vulnerable to bumping. 7-Pin Rim Cylinders upgrade existing door hardware to Grade 1 security.

7-Chamber Precision

  • $\Phi 34\text{ mm}$ Standard Flange: Direct drop-in replacement for traditional Yale-type nightlatches.
  • Over 500,000 Differs: 7 precision pin chambers with anti-pick spool drivers.

Frequently Asked Engineering & Selection Questions

Q1: What is the primary application of this cylinder?

Technical specifications for surface-mounted rim nightlatch replacement cylinders featuring 7 active pin tumblers.