US

Schlage L9050 Office/Inner Entry Mortise Lock Heavy Duty Commercial Lock Body

  • Chassis only, no trim or cylinder listed
  • Office/inner entry function, commercial grade
  • Heavy-gauge steel case, zinc dichromate-plated parts
  • Field-reversible handing without opening the case
  • 3.3 pounds item weight
  • Fusible link gives fail secure mode in fire

Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A heavy duty commercial mortise lock body for office and inner entry doors.

As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.

ASIN: B004C406XGModel: L9050LBCategory: Keyed

Overview

A facilities manager or locksmith fitting a commercial office door gets a mortise lock case with a fully wrapped steel body. The universal case covers ten functions, with floating mounting tabs that adjust to a beveled door edge.

The reason to buy is the build and the flexibility of a universal lock case with field-reversible handing and a fail secure fusible link. The limitation is that this is the lock body alone, and the specs mix key lock, keyless, mechanical knob and app control.

Who it's for

Commercial installs where a mortise lock body is specified and matching trim and cylinders are sourced separately. Homeowners wanting a drop-in keyed lockset should look at a complete residential set.

Pros and cons

Pros
  • Fully wrapped steel case
  • Zinc dichromate-plated working parts
  • Floating tabs fit beveled door edges
  • Break-away spindle design
Cons
  • Trim and cylinder not included
  • Control method fields conflict
  • Mortise prep required

Performance notes

The wrapped steel case resists attacks on the door edge, and the hub blocking plate protects the lock against spindle manipulation. A break-away spindle prevents unsecured failures, and the fusible link switches to fail secure mode if fire heats the lock.

Where it stands among keyed

  • #4 most-searched brand and model of the 5 keyed lines we track (by search demand, not sales).

From the specs of the 8 keyed we list; not a test result.

Specifications

ModelL9050LB
Dimensions & fit
Item weight3.3 pounds
Construction & materials
MaterialAlloy Steel
ColorMetallic
Durable ConstructionMade from heavy duty steel for long lasting use
Included components
IncludedMortise Lock Body
Other details
Lock typeKey Lock
Recommended useSecuring office spaces, inner entry doors in commercial settings
StyleModern
FeaturesField-reversible handing, floating mounting tabs, break-away spindle, hub blocking plate, fusible link
Keyless AccessAllows keyless entry for added security and convenience
Secure LockingFeatures a mechanical knob for easy installation and operation
Trusted BrandFrom a leading brand in door hardware and locks for over 150 years

Frequently asked questions

How do I install the Schlage L9050 lock body?

It is a mortise lock, so the door must be prepared with a mortise pocket. The description says floating tabs adjust to a beveled edge and handing can be reversed in the field without opening the case.

Does the L9050 include a lever or cylinder?

No. The title says chassis only, and the included component is the mortise lock body.

Is this lock keyless or app controlled?

The listing fields conflict: key lock, keyless, mechanical knob and app all appear. The title describes an office function mechanical lock body.