Emtek 8478US15 Quincy Single Cylinder Deadbolt Satin Nickel

Product Description

The EMTEK 8478US15 is a single cylinder deadbolt designed for residential and light commercial door applications. It installs on doors measuring 1-3/4 inches thick and accepts two backset configurations: 2-3/8 inches for standard interior doors and 2-3/4 inches for typical exterior door prep. The Quincy style features a satin nickel (US15) finish. The deadbolt provides a solid mechanical locking solution suitable for entry doors, and it is installed by finish carpenters, general contractors, and locksmiths performing door hardware replacement or new construction rough-in work.

The 8478US15 is suited for residential entry doors and light commercial applications where a single cylinder deadbolt is specified. The single cylinder configuration means keyed entry from the exterior with a thumb turn on the interior. Compatible backset dimensions of 2-3/8 inches and 2-3/4 inches cover the most common door bore preparations found in residential construction. The satin nickel finish coordinates with a wide range of door hardware and architectural trim.

Key Features

• Single cylinder operation: keyed exterior entry with interior thumb turn
• Fits doors 1-3/4 inches thick
• Dual backset compatibility: 2-3/8 inches and 2-3/4 inches
• Satin nickel (US15) finish for corrosion resistance and aesthetic versatility
• Quincy style design for a clean, traditional profile
• Sold individually; packaged dimensions approximately 9.5 x 5 x 3.5 inches

Compatibility

Designed as an OEM-style replacement or new-installation deadbolt for residential and light commercial doors measuring 1-3/4 inches thick with standard 2-1/8 inch bore prep and either a 2-3/8 inch or 2-3/4 inch backset.

Installation Notes

Installation is performed by a finish carpenter, locksmith, or qualified general contractor following the door manufacturer's bore template and local building code requirements. Verify door thickness and backset measurement before installation to ensure proper latch alignment with the strike plate. No special tools beyond a screwdriver and drill are typically required for standard residential door prep. Always confirm the existing bore diameter matches the deadbolt's required hole size before beginning installation.