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The EMTEK 5210MDCUS15 is a privacy knob set featuring a Modern Disc Crystal knob paired with a square rosette, finished in Satin Nickel. Designed for interior privacy applications such as bedrooms and bathrooms, this set provides a locking function accessible from the outside with a standard privacy tool while maintaining a clean, modern aesthetic. The crystal knob delivers a distinctive look suited to contemporary interiors. Installation requires a standard 2-1/8 inch door prep. The included latch is set for a 2-3/8 inch backset as standard, with a 2-3/4 inch backset available by special order at time of purchase. Licensed contractors and finish carpenters typically handle installation on pre-hung or existing interior door assemblies.
This privacy set is intended for interior residential door applications where a turn-button privacy lock is required. Typical installations include bedroom and bathroom doors in new construction and remodel projects. The square rosette offers a geometric profile that suits modern and transitional interior design schemes. The Satin Nickel finish provides a brushed, low-sheen appearance that coordinates with a wide range of hardware and fixture finishes commonly specified in residential projects.
Designed as a privacy knob set for interior doors with a standard 2-1/8 inch cross-bore preparation. Specify backset requirement at time of ordering if 2-3/4 inch backset is needed rather than the standard 2-3/8 inch.
Installation is typically performed by a finish carpenter or licensed contractor. Before installing, confirm door bore diameter and backset measurement to ensure the correct latch is included or ordered. Power tools are not required for standard installation, though a screwdriver and door-prep template may be needed. Verify that the door edge prep and strike plate mortise are correctly aligned before final fastening.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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