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Satin chrome cylindrical deadbolt with single cylinder and rectangular faceplate

Master Lock

Master Lock Deadbolt One Side Cylinder Satin Chrome

SKU CH-7SPD-DHNPS

Heavy-duty brass deadbolt with single-cylinder operation, ANSI Grade 2 security, ADA compliant, fits doors 1 3/8 to 1 3/4 inches thick

  • TypeOne Side Cylinder
  • ANSI Grade 2 certified for commercial-grade security
  • Single-cylinder deadbolt with 1-inch throw resists forced entry
  • Satin chrome brass finish withstands heavy daily use
  • Fits standard doors 1-3/8 to 1-3/4 inches thick
  • ADA-compliant design ensures accessible operation for all users

Single-Cylinder Deadbolt

The Master Lock QDB2 Series deadbolt is a Grade 2 cylindrical lockset finished in satin chrome. It uses a one-side cylinder design, meaning it operates by key on the exterior and a thumbturn on the interior. The heavy-duty brass construction suits commercial and residential doors requiring ANSI Grade 2 security.

Fits Standard Prep

Installation follows standard door preparation with a 2-3/4 inch backset and a 1-1/8 by 2-1/4 inch faceplate. The lock fits doors 1-3/8 to 1-3/4 inches thick and includes all necessary mounting hardware. Misalignment of the 2-3/4 inch strike or incorrect door thickness are the most common issues preventing smooth bolt throw.

Commercial & ADA Access

This deadbolt suits building managers and specifiers needing ADA-compliant, ligature-resistant hardware for high-traffic doors. It is not suited for projects requiring a fire-rated lockset, double-cylinder keying, or a keyed interior override. Buyers needing a keyed entry function on both sides should select a different cylinder type.

Highlights

  • ANSI Grade 2 certified for commercial-grade security
  • Single-cylinder deadbolt with 1-inch throw resists forced entry
  • Satin chrome brass finish withstands heavy daily use
  • Fits standard doors 1-3/8 to 1-3/4 inches thick
  • ADA-compliant design ensures accessible operation for all users

Specifications

BrandMaster Lock
TypeOne Side Cylinder

Questions about this item

How do I confirm the deadbolt is operating correctly after installation?

Turn the interior thumb-turn fully; the 1-inch throw bolt should extend and retract smoothly into the 2-3/4-inch strike without binding, and the door must latch securely when closed.

What hardware is included and what must I supply separately?

The lockset ships with all mounting hardware for 1-3/8 to 1-3/4 inch doors; no cylinder or keys are included because the unit is a non-keyed single-cylinder design.

Which finish and grade combination suits a commercial interior door?

The satin-chrome brass finish meets ANSI Grade 2 and ADA requirements, making it the appropriate choice for heavy-duty commercial use.

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