Emtek 5123ROUUS19 Round Knob Keyed Entry Flat Black

Product Description

The EMTEK 5123ROUUS19 is a keyed entry knob set finished in flat black, designed for residential and light commercial door hardware applications. It pairs a round knob with a modern rectangular rose plate, providing both a functioning latch mechanism and a refined visual profile. The set accommodates two standard backset measurements — 2-3/8 inches and 2-3/4 inches — making it compatible with the most common pre-bored door preparations. It is suited for doors ranging from 1-3/8 inches to 2-1/16 inches in thickness. Licensed locksmiths, carpenters, and general contractors typically handle installation of keyed entry hardware at exterior or secured interior doors.

This knob set is intended for keyed entry applications, meaning it locks and unlocks via a keyed cylinder on the exterior side and a turn button or thumb-turn on the interior. The modern rectangular rose gives it a contemporary look suited for transitional and modern interior design schemes. It works with standard residential door preparations and is sold as a single unit. The flat black finish coordinates with current fixture and hardware trends in residential construction and remodeling.

Key Features

• Keyed entry function — locks from exterior with key, releases from interior
• Dual backset compatibility: 2-3/8 inches and 2-3/4 inches
• Fits door thickness from 1-3/8 inches to 2-1/16 inches
• Round knob profile paired with a modern rectangular rose plate
• Flat black finish for a contemporary, low-glare appearance
• Sold individually (single set per unit)

Compatibility

Designed for standard residential doors with a 2-3/8 inch or 2-3/4 inch backset and a door thickness between 1-3/8 inches and 2-1/16 inches. Consult the installation template to confirm bore hole diameter and cross-bore alignment before ordering.

Installation Notes

Installation is typically performed by a licensed locksmith, finish carpenter, or general contractor. Before installation, confirm the door bore hole diameter and backset measurement match the hardware specifications. Ensure the door is not under load or latched during fitting to allow accurate strike plate alignment. Follow local building codes for exterior keyed entry hardware, particularly in applications involving egress doors.