Emtek 5122ROUUS19.RLS Round Knob Keyed Entry Flat Black

Product Description

The EMTEK 5122ROUUS19.RLS is a keyed entry door knob set finished in flat black, designed for residential entry doors. It ships with a radius latch strike and accommodates both 2-3/8 inch and 2-3/4 inch backsets, making it compatible with standard door prep across most residential applications. The knob mounts on a square rose plate and is rated for doors ranging from 1-3/8 inches to 2-1/16 inches thick. Hardware is custom assembled at EMTEK's Southern California facility and sold as a single unit. This set is appropriate for any licensed or experienced installer fitting or replacing entry door hardware.

This keyed entry set is suited for residential exterior or interior entry doors where a lockable knob with a clean, flat black finish is specified. The included radius latch strike simplifies installation on standard door frames. The square rose plate provides a defined, architectural look. The dual-backset latch accommodates the two most common residential door bore configurations without requiring a separate latch purchase, making this an efficient single-box solution for new installs or replacement work on doors between 1-3/8 inches and 2-1/16 inches thick.

Key Features

• Keyed entry function with round knob and square rose plate
• Dual backset compatibility: 2-3/8 inches and 2-3/4 inches
• Fits door thickness range of 1-3/8 inches to 2-1/16 inches
• Includes radius latch strike for standard frame installation
• Flat black finish for a consistent, low-sheen appearance
• Custom assembled — sold as a single complete unit

Compatibility

Designed as an OEM-style keyed entry knob set for residential doors with standard 2-3/8 inch or 2-3/4 inch backset bore preparation and door thickness between 1-3/8 inches and 2-1/16 inches.

Installation Notes

Installation is performed by a qualified carpenter, locksmith, or general contractor. Before beginning, confirm the existing door bore diameter and backset measurement to select the correct latch setting. Disengage any existing locking hardware and ensure the door is secure before removing the old knob set. Follow local building codes and the manufacturer's included instructions for fastener torque and latch alignment; do not overtighten mounting hardware on composite or hollow-core doors.