We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Satin chrome mortise cylinder lock, solid brass, 1-1/8 inch length

Tuff Stuff

Tuff Stuff 21852D Satin Chrome 26D Mortise Cylinder Door Lock

SKU CH-TTM2-ZVD11 MPN 21852D

Solid brass mortise cylinder with Segal SE1 keyway fits standard mortise locks and can be re-keyed

  • Surface finishSatin Chrome
  • Sold asEach
  • Product typeMortise Cylinder
  • Key featuresTuff Stuff
  • Solid brass construction resists corrosion and wear
  • 1-1/8" mortise cylinder fits most standard mortise locks
  • Segal SE1 keyway allows re-keying to match existing keys
  • 5-pin tumbler mechanism provides reliable security performance
  • Satin chrome 26D finish delivers durable, low-maintenance appearance

Solid Brass Mortise Cylinder

The Tuff Stuff 21852D is a solid brass mortise cylinder with a satin chrome finish and Segal SE1 keyway. It suits homeowners and locksmiths who need a direct replacement cylinder for existing mortise lock bodies on interior or exterior doors.

Replaces worn or damaged cylinders

This cylinder replaces a failed or keyed-different mortise cylinder without changing the surrounding lock hardware. The jump is worth it when the existing cylinder binds, loses pins, or when a property requires a new keyway while keeping the original mortise case.

Straightforward cylinder swap

Installation involves removing the set screw, unscrewing the old cylinder, and threading the new 1-1/8" unit into the mortise body before tightening the set screw. What usually goes wrong is mismatched cam orientation or incorrect cylinder length for the door thickness, so verify the cam position and measure the old cylinder before fitting.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 93% of the 2,145 comparable items (median $55.99).

Specifications

Product
Model name21852D
Product typeMortise Cylinder
Size & build
Surface finishSatin Chrome

Questions about this item

What door thickness does the 1-1/8" mortise cylinder fit?

The 1-1/8" length suits standard doors; different sizes are available for other thicknesses.

How is the Segal SE1 keyway cylinder installed and what step is often missed?

Insert the cylinder into the mortise body, secure with the set screw, then test the cam rotation before tightening fully.

When will the 5-pin tumbler cylinder need re-keying or replacement?

Re-key if keys are lost or access changes; replace if the brass cylinder shows wear or the cam fails to engage.

More in Door Lock Sets & Deadbolts

Similar items