Commercial Mortise Cylinders | Keyed Alike Within Each Pair | Each Pair Keyed Differently | Storefront Door Hardware

Simplify commercial door keying while keeping separate openings independently secured with this 1" Mortise Cylinder Pair — Keyed Alike in Pairs.

Each package contains two matching 1" mortise cylinders that operate with the same key. When multiple pairs are ordered, each pair is keyed differently from the other pairs, providing a convenient solution for facilities that need two matching cylinders per opening without using the same key throughout the entire building.

This keying configuration is commonly referred to as KA2 – Keyed Alike in Pairs.

Key Features

• Pair of 1" commercial mortise cylinders

• Two cylinders per pair

• Cylinders within each pair are keyed alike

• Each pair is keyed differently from other pairs

• KA2-style commercial keying

• Standard threaded mortise-cylinder design

• Ideal for paired commercial doors

• Excellent for storefront lock applications

• Provides separate key control between openings

• Suitable for replacement, retrofit, and new installations

• Commercial-grade locking hardware

How the Keying Works

Each set includes:

Cylinder #1 + Cylinder #2 = Same Key

If multiple pairs are ordered:

Pair #1 = Key A
Pair #2 = Key B
Pair #3 = Key C
Pair #4 = Key D

The cylinders within each pair operate from the same key, but keys from one pair will not operate the cylinders in another pair.

Keyed Alike in Pairs – KA2

Commercial lock manufacturers commonly identify this configuration as:

KA2 – Keyed Alike in Pairs

This is different from:

Keyed Alike – KA

All cylinders in the order operate from the same key.

Keyed Different – KD

Every individual cylinder receives a different key.

Keyed Alike in Pairs – KA2

Two cylinders share one key combination, while each subsequent pair receives a different combination.

1" Mortise Cylinder Length

Each cylinder has a nominal body length of:

1"

The 1" mortise cylinder is commonly used with commercial storefront locks and other compatible mortise-cylinder hardware. Commercial 1" cylinder pairs are widely offered for storefront applications.

Always verify the required cylinder length before ordering.

Ideal for Paired Door Openings

This keying arrangement is especially useful when a commercial opening has two keyed cylinders that should operate from the same key.

Examples include:

• Paired storefront doors

• Double commercial doors

• Two-cylinder entrances

• Matching locks at one opening

• Multiple tenant entrances

• Multiple facility doors requiring separate keys

Each opening can have its own matching pair without sharing the same key with every other opening.

Commercial Mortise Cylinder Design

Mortise cylinders use a threaded body that screws into compatible commercial locking hardware.

Common applications include:

• Storefront deadlocks

• Hookbolt locks

• Deadlatches

• Mortise locks

• Exit-device trim

• Commercial entrance hardware

Product Specifications

Product Type: Mortise Cylinder Pair
Quantity: 2 Cylinders Per Pair
Cylinder Length: 1"
Keying: Keyed Alike in Pairs / KA2
Within Each Pair: Keyed Alike
Between Separate Pairs: Keyed Different
Cylinder Style: Threaded Mortise Cylinder
Application: Commercial Door Hardware
Use: Replacement / Retrofit / New Installation

Common Applications

Ideal for:

• Aluminum storefront doors

• Paired commercial doors

• Double-door entrances

• Storefront deadlocks

• Hookbolt locks

• Deadlatches

• Mortise locks

• Exit-device trim

• Office buildings

• Retail stores

• Shopping centers

• Schools

• Warehouses

• Commercial facilities

• Institutional buildings

Keyway Compatibility

Mortise cylinders are available with different keyways.

Depending on the cylinder selected, common commercial configurations may include:

• Schlage C / SC1

• Other commercial keyways

The keyway should be confirmed before ordering if the cylinders need to match an existing facility key system.

Important Cam Note

Mortise cylinders are also available with different cams, and the correct cam is critical for lock operation.

Common configurations may include:

• Adams Rite cam

• Standard mortise cam

• Manufacturer-specific cam

Commercial 1" mortise cylinders are available with different cam and keyway configurations, so compatibility should be confirmed with the existing lock.

Replacement Applications

This cylinder pair is an excellent choice when:

• Two cylinders at one opening need matching keys

• Existing cylinders are damaged

• Storefront locks are being replaced

• A facility needs separate keys for each opening

• Multiple door pairs are being standardized

• Existing mortise cylinders are being rekeyed

• Tenant openings require individual key control

Ordering Example

If you order:

1 Pair

You receive two cylinders keyed alike.

If you order:

5 Pairs

You receive:

• Pair 1 – Two matching cylinders

• Pair 2 – Two matching cylinders with a different key

• Pair 3 – Two matching cylinders with a different key

• Pair 4 – Two matching cylinders with a different key

• Pair 5 – Two matching cylinders with a different key

Each pair is unique from every other pair.

Ordering Information

Before ordering, verify:

• 1" cylinder length

• KA2 / keyed-alike-in-pairs requirement

• Required keyway

• Required cam

• Existing lock manufacturer

• Required finish

• Number of pairs required

• Number of keys required per pair

What's Included

(1) Pair of 1" Mortise Cylinders

Includes:

• (2) Mortise Cylinders

• Cylinders keyed alike to each other

• Each separate pair keyed differently

Keys are supplied according to the selected cylinder package.