Master Lock BLC0932DKA4 Classroom Knob Lockset

Product Description

The MASTER LOCK BLC0932DKA4 is a Grade 2 classroom knob lockset designed for use on doors up to 1.75 inches thick. Built from steel with a brushed chrome finish, it uses a 6-pin Schlage C-type cylinder and a 2.75-inch backset. The keyed-alike configuration allows a single key to operate multiple locksets across a facility, reducing key management complexity. This lockset is installed by locksmiths, general contractors, or maintenance technicians working on commercial or institutional interior door hardware. It meets ANSI/BHMA A156.2 standards and carries a UL listing, making it appropriate for code-compliant door hardware installations.

This lockset is suited for classroom applications in schools, offices, and institutional facilities where a door must be locked from the hallway side without a key from the inside. The classroom function allows occupants to exit freely at all times while the exterior knob remains locked by default or on demand. The 2.75-inch backset fits standard door preparations found in most commercial interior doors. The brushed chrome finish is compatible with common commercial door hardware finishes and is appropriate for high-traffic environments.

Key Features

• Classroom function: exterior knob locks without a key from the inside, free egress maintained at all times
• 6-pin Schlage C-type cylinder for enhanced pick resistance
• Keyed-alike configuration simplifies key management across multiple doors
• Steel construction with brushed chrome finish for durability in high-traffic settings
• Meets ANSI/BHMA A156.2 Grade 2 standards and carries UL listing
• Fits doors up to 1.75 inches thick with a 2.75-inch backset

Compatibility

Designed for standard commercial interior doors up to 1.75 inches thick with a 2.75-inch backset preparation. Compatible with Schlage C-type keying systems as indicated in the product specifications.

Installation Notes

Installation should be performed by a qualified locksmith or licensed contractor familiar with commercial door hardware. Verify door prep dimensions, including backset and bore diameter, before beginning installation. Disconnect any access control wiring and ensure the door is secure before removing the existing hardware. Follow ANSI/BHMA and applicable local building code requirements for hardware grade and classroom function compliance.