Corbin Russwin 574F55 Grade 1 CK4400 2-3/8 Inch Backset Deadlocking Latch, Square corner

Corbin Russwin 574F55 CK4400 Series 2-3/8 Inch Backset Deadlocking Latch with Square Corner Faceplate

Commercial-Grade Mortise Replacement Latch for CK4400 Series Locksets

The Corbin Russwin 574F55 is a Grade 1 commercial deadlocking latch designed as a precision replacement part for the CK4400 Series mortise lockset line. Featuring a 2-3/8 inch backset and a square corner faceplate, this latch delivers reliable deadlocking performance in demanding commercial door hardware applications. Its field-reversible handing makes it adaptable to virtually any door configuration, and it is backed by a 10 Year Limited manufacturer warranty for long-term confidence.

Professional Features & Benefits

• Precise 2-3/8 Inch Backset: Engineered with a 2-3/8 inch backset measurement to ensure accurate fit and proper door edge alignment in compatible CK4400 Series mortise locksets.
• Square Corner Faceplate: Square corner faceplate design provides a clean, professional finish and is compatible with standard mortise door preparations requiring a square corner strike and faceplate profile.
• Deadlocking Latch Mechanism: Incorporates a deadlocking latch function that resists shimming and unauthorized retraction, enhancing security in commercial applications.
• Field-Reversible Handing: Designed for field-reversible door hand direction, allowing installers to adapt the latch to left-hand or right-hand door configurations without special tools or additional components.
• Grade 1 Commercial Rating: Meets Grade 1 standards for heavy-duty commercial use, ensuring durability and reliable performance in high-traffic institutional and commercial environments.
• CK4400 Series Compatibility: Specifically engineered as a replacement part for Corbin Russwin CK4400 Series mortise locksets, ensuring proper fit and function when servicing or upgrading existing hardware.
• Manufacturer Warranty: Backed by a 10 Year Limited warranty for added confidence and long-term protection in commercial installations.

Technical Specifications

• Product Group: Parts and Accessories
• Series: CK4400 Series
• Grade: Grade 1
• Warranty: 10 Year Limited
• Product Subgroup: Parts and Accessories
• Product Type: Backsets
• Commercial/Residential: Commercial
• Lock Type: Mortise
• Subcategory: Parts and Accessories
• Parts and Accessories Type: Replacement Parts
• Product Attribute: Parts and Accessories
• Door Hand Direction: Field Reversible
• Product Category: Mechanical Locks
• Department: Door Hardware

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Government and Municipal Buildings
• Multi-Tenant Residential Properties
• Industrial and Warehouse Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin door hardware components are engineered to Grade 1 commercial standards, delivering the durability and precision required for high-traffic institutional and commercial environments. The 574F55 deadlocking latch is purpose-built for the CK4400 Series mortise lockset platform, ensuring seamless compatibility and reliable performance as a replacement part. Backed by a 10 Year Limited warranty, this latch represents a dependable, long-term solution for maintaining the integrity of commercial door hardware installations.