Sargent 28-11U65 Lp 10B Cylindrical Lock Grade 1

Product Description

The SARGENT 28-11U65 LP 10B is a Grade 1 cylindrical lock from the Sargent 11 Line, engineered for high-traffic institutional environments. It features T-Zone construction, which creates true interlocking between the lockbody and latch for exceptional strength and durability. This bored-in lock installs into standard 2-1/8 inch cylindrical door prep openings. Performance meets and exceeds ANSI 156.2 Series 4000 Grade 1 standards, making it a proven choice for facilities where security and long-term reliability are non-negotiable. Licensed locksmiths and commercial door hardware installers are the typical trade for this product.

This cylindrical lock is intended for demanding institutional applications including schools, hospitals, and other high-traffic commercial facilities. The Grade 1 rating confirms it meets the most rigorous ANSI performance benchmarks for cycle life, security, and strength. It is suited for bored-in door preparations using standard cylindrical boring specifications. Verify door thickness and existing prep dimensions prior to installation to confirm compatibility with the hardware trim and latch configuration.

Key Features

• T-Zone construction provides true interlocking between lockbody and latch for enhanced structural integrity
• Exceeds ANSI 156.2 Series 4000 Grade 1 standards for security and durability
• Bored-in installation into standard 2-1/8 inch cylindrical door prep
• Designed for high-traffic institutional environments such as schools and hospitals
• Grade 1 rating confirms suitability for the most demanding commercial applications

Compatibility

Designed for installation in doors prepared with a standard 2-1/8 inch cylindrical boring. Confirm door thickness, backset, and prep specifications before installation to ensure proper fitment with the selected trim and latch components.

Installation Notes

Installation should be performed by a licensed locksmith or qualified commercial door hardware technician. Verify door thickness and cylindrical prep dimensions before beginning installation. Disengage any access control or electric hardware connected to the door before servicing. Follow the manufacturer installation instructions and applicable building or life safety codes for the jurisdiction.