Narrow-Stile Mortise Lock Body | Hook Bolt Security | Aluminum Storefront & Sliding Door Applications

Secure commercial storefront and sliding door openings with this Commercial-Grade Hook Bolt Mortise Lock Body, designed for narrow-stile aluminum doors and other compatible commercial entrance systems.

The projecting hook-style bolt engages the strike to provide positive locking action and increased resistance against separation of the door and frame. Its compact mortise design makes it an excellent choice for aluminum storefront doors, sliding doors, and replacement commercial lock applications.

Key Features

• Commercial-grade hook bolt mortise lock body

• Designed for narrow-stile commercial doors

• Hook-style bolt provides positive locking engagement

• Ideal for sliding and aluminum storefront doors

• Mortise-mounted construction

• Heavy-duty commercial design

• Suitable for new construction and replacement applications

• Compatible with common mortise cylinders and thumbturns when properly configured

• Compact design fits narrow aluminum door stiles

• Excellent for retail, office, and commercial entrance applications

Hook Bolt Security

Unlike a standard straight deadbolt, the hook bolt projects into the strike and hooks into position when locked.

This design helps resist:

• Door separation

• Prying

• Lateral movement

• Forced opening

• Accidental disengagement

The hook-style locking action is particularly useful on sliding and narrow-stile storefront doors.

Narrow-Stile Commercial Design

The compact mortise body is designed for use in narrow aluminum door stiles where conventional cylindrical or full-size mortise locks may not fit.

Common applications include:

• Aluminum storefront doors

• Sliding commercial doors

• Glass entrance doors with aluminum stiles

• Retail entrances

• Office storefront systems

• Commercial exterior doors

Product Specifications

Product Type: Hook Bolt Mortise Lock Body
Lock Type: Mortise
Bolt Style: Hook Bolt
Application: Commercial / Storefront
Door Type: Aluminum Narrow Stile / Sliding Door
Operation: Cylinder or Thumbturn, Depending on Configuration
Installation: Mortised into Door Stile
Duty: Commercial Grade

Backset Options

Depending on the selected configuration, common narrow-stile backsets may include:

• 31/32"

• 1-1/8"

• 1-1/2"

Always verify the existing lock body and door preparation before ordering.

Cylinder Compatibility

The lock body can be configured for compatible commercial locking hardware such as:

• Mortise cylinders

• Thumbturn cylinders

• Keyed exterior cylinders

• Interior thumbturn operation

Cylinder, thumbturn, faceplate, and strike requirements depend on the specific installation.

Common Applications

Ideal for:

• Aluminum storefront doors

• Sliding commercial doors

• Retail entrances

• Shopping centers

• Office buildings

• Restaurants

• Schools

• Commercial facilities

• Glass-and-aluminum entrance systems

• Replacement storefront hardware

Replacement Applications

This hook bolt lock body is an excellent replacement option for worn or damaged narrow-stile locks where the existing door preparation is compatible.

Before ordering, verify:

• Backset

• Door stile dimensions

• Faceplate dimensions

• Cylinder type

• Cylinder length

• Strike configuration

• Bolt location

• Existing lock manufacturer and preparation

What's Included

(1) Hook Bolt Mortise Lock Body

Faceplate, strike, mortise cylinder, thumbturn, escutcheons, mounting hardware, and other accessories are sold separately unless specifically stated otherwise.