Horizontal Door Lock Zoo

Zoo Horizontal Lock – 127 mm & 152 mm (Brass or Satin Stainless Steel)

The Zoo 3 Lever Horizontal Lock is a versatile, robust mortice lock designed to provide reliable mechanical security for a wide range of internal and external doors. Distinguished by its horizontal locking orientation, this lock offers a deeper and more substantial fixing than many traditional vertical sashlocks and deadlocks, making it ideal for use in conjunction with door knobs or levers on midrail locations and panelled doors.

Product Overview

Available in two case sizes — 127 mm (5 inch) and 152 mm (6 inch) — the Zoo 3 Lever Horizontal Lock accommodates different door thicknesses and security preferences. Both sizes share a 127 mm backset, ensuring compatibility with standard UK door preparations and allowing flexibility across multiple door types.

This horizontal lock is available in two classic finishes:

• Satin Stainless Steel — ideal for contemporary architectural schemes and corrosion resistance.

• PVD Brass — providing a warm, premium aesthetic and enhanced surface resilience.

Key Features

• 3-lever locking mechanism — provides secure key operation with a complete turn of the key.

• Solid brass latch and deadbolt — delivers smooth, positive engagement and long-lasting performance.

• Easy latch reversal — allows quick configuration for left-hand or right-hand door hung applications.

• Supplied with matching strike plate and fixings.

• Two solid brass keys included with each lock.

• Keyed alike option available (No. 379) for multiple locks to operate from the same key where required.

Variants & Finishes

• Standard 3 Lever Lock – 127 mm or 152 mm: Suitable for keyed locking applications on standard doors.

• Keyed Alike Option: Ensures common keying across multiple locks (ideal for multi-door installations).

• Bathroom Lock Variant: A horizontal bathroom lock option is offered in corresponding finishes for WC and bathroom doors.

Dimensions

• Case Size:

  • 127 mm (5 inch) model — compact horizontal lock option.

  • 152 mm (6 inch) model — deeper case for increased engagement.

• Backset: 127 mm (distance measured from the centre of spindle/keyhole to the front edge of the lock forend).

• Horizontal orientation: The spindle follower and key remain on a horizontal axis, enhancing the aesthetic and functional suitability for midrail applications.

Performance & Suitability

The horizontal latch and deadbolt design make this lock well-suited for internal and external doors where a traditional mortice lock is required. As a 3-lever security lock, it offers enhanced resistance over basic tubular latches, making it suitable for residential, office, and general commercial use where secure keyed access is needed. It is commonly used with door knobs or lever furniture on panelled doors, providing a neat and secure locking solution.

Typical Installation

• Mortice installation into the door edge with the horizontal orientation providing a shallow rectangular lock body.

• Use with appropriate escutcheons, knobs or levers, and strike plates to complete the door hardware assembly.