Emtek 5103WCMB Winchester Knob Keyed Entry Medium Bronze

Product Description

The EMTEK 5103WCMB is a Winchester-style keyed entry door knob set finished in Medium Bronze. It is designed for installation on exterior or interior entry doors requiring a keyed lockset. The knob set ships with a three-piece rose configuration and supports both 2-3/8 inch and 2-3/4 inch backset measurements, accommodating the two most common door prep standards found in residential construction. The set fits door thicknesses ranging from 1-3/8 inches to 2-1/16 inches. Finish is Medium Bronze. Installation is performed by a finish carpenter, general contractor, or experienced locksmith during new construction or hardware replacement.

The 5103WCMB is suited for residential entry doors where a keyed knob is required in place of a lever. The dual-backset compatibility makes it a practical fit for standard pre-hung door units and retrofit applications. The included three-piece rose provides a traditional trim appearance around the knob base. The Medium Bronze finish coordinates with period-style and transitional architectural hardware programs. This knob set is sold as a single assembly unit.

Key Features

• Supports 2-3/8 inch and 2-3/4 inch backset — covers both standard residential door preps
• Compatible with door thicknesses from 1-3/8 inches to 2-1/16 inches
• Keyed entry function for exterior or secured interior door applications
• Includes three-piece rose for a traditional trim presentation at the knob base
• Medium Bronze finish for use in period-style and transitional hardware schemes
• Single assembly unit — sold individually (EA)

Compatibility

Designed as an OEM-style keyed entry knob set for residential doors prepped for a standard cylindrical lockset with 2-3/8 inch or 2-3/4 inch backset on doors 1-3/8 inches to 2-1/16 inches thick.

Installation Notes

Installation is typically performed by a finish carpenter, locksmith, or experienced DIYer using a screwdriver and door-prep tools. Confirm the existing door bore diameter and backset measurement before installation to select the correct latch. When replacing an existing knob set, disengage the latch mechanism and remove the existing rose and knob before fitting the new hardware. Follow local building codes for keyed entry hardware on egress doors.