Mortise Lock Thumb Turn | Zinc Construction | Aluminum or Dark Bronze Finish | Commercial Door Hardware

Provide convenient interior locking and unlocking with this Commercial-Grade Zinc Cylinder Thumb Turn, designed for compatible mortise lock applications.

Constructed from durable zinc and available in Aluminum or Dark Bronze finishes, this thumb turn provides simple keyless operation from the interior side of the door while coordinating with common commercial storefront and architectural hardware.

It is an excellent choice for aluminum storefront doors, commercial entrances, offices, retail spaces, and replacement mortise-lock applications.

Key Features

• Commercial-grade mortise lock thumb turn

• Durable zinc construction

• Provides convenient interior locking and unlocking

• Designed for compatible mortise lock applications

• Available in Aluminum or Dark Bronze

• Compact commercial hardware design

• Suitable for new installations and replacement applications

• Coordinates with common storefront and commercial door hardware

• Easy hand-operated function

• Ideal for commercial and institutional openings

Interior Thumb-Turn Operation

The thumb turn allows the lock mechanism to be operated from the interior without using a key.

This provides convenient operation for compatible openings where users need to:

• Lock the door from the interior

• Unlock the door quickly

• Operate a mortise lock without a key

• Maintain a clean commercial hardware appearance

Zinc Construction

The zinc body provides a durable solution for everyday commercial use.

Benefits include:

• Strong commercial construction

• Corrosion resistance

• Reliable repeated operation

• Low maintenance

• Long service life

• Clean architectural appearance

Available Finishes

Choose from:

• Aluminum

• Dark Bronze

These finishes coordinate with common commercial door hardware, aluminum storefront systems, mortise lock faceplates, and architectural trim.

Product Specifications

Product Type: Cylinder Thumb Turn
Application: Mortise Lock
Material: Zinc
Operation: Hand Operated
Available Finishes: Aluminum / Dark Bronze
Application Type: Commercial / Institutional
Door Type: Aluminum Storefront / Commercial Door
Installation: Compatible Mortise Lock Preparation

Common Applications

Ideal for:

• Aluminum storefront doors

• Commercial entrance doors

• Retail stores

• Office buildings

• Restaurants

• Shopping centers

• Schools

• Government buildings

• Commercial facilities

• Glass-and-aluminum door systems

• Replacement mortise lock hardware

Replacement Applications

This thumb turn is an excellent choice for replacing worn, damaged, missing, or mismatched interior mortise-lock hardware.

Before ordering, verify:

• Mortise lock compatibility

• Cam or tailpiece requirements

• Door thickness

• Existing cylinder preparation

• Required finish

• Lock manufacturer and model

Important Compatibility Note

Mortise lock thumb turns can vary by manufacturer, spindle, cam, tailpiece, and cylinder preparation.

Always confirm compatibility with the existing mortise lock before ordering.

What's Included

(1) Zinc Cylinder Thumb Turn in Selected Finish

Mortise lock body, cylinder, faceplate, strike, mounting hardware, and other accessories are sold separately unless specifically stated otherwise.