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Satin chrome euro cylinder with interior turn knob

Marks USA

Marks USA 2621/26D Euro Profile Single Cylinder Door Lock Satin Chrome US26D Interior Turn Knob

SKU CH-EC8Z-NV8PJ MPN 2621/26D

Euro profile single cylinder with 360-degree key or thumbturn operation and high-precision 5-pin tumbler security

  • FinishSatin Chrome
  • TypeEuro Profile Cylinder
  • KeyingKeyed Different
  • Commercial/ResidentialCommercial
  • High-security 5-pin tumbler resists picking
  • Solid brass body and plug ensure durability
  • Steel cam and cogwheel withstand heavy use
  • Rekeyable design allows key changes easily
  • 360-degree rotation with key or thumbturn

Euro Profile Cylinder for Mortise Locks

This Marks USA 2621/26D is a single euro-profile cylinder with an interior turn knob, designed for commercial doors using European-style mortise lock cases. It suits installers fitting or replacing cylinders in aluminium, timber or steel doors that accept the standard euro profile format.

Direct replacement with 360-degree operation

The cylinder body measures 2-1/2 inches and drops into compatible mortise housings without modification; the key or thumbturn rotates a full 360 degrees to throw or retract the bolt. A common issue is mis-measuring the existing cylinder length or cam position, so verify the current hardware before ordering.

Check door thickness and cam alignment

Ensure the door thickness matches the 2-1/2" body length and that the mortise lock case uses a standard euro-profile cam. The brass body and steel cam are rekeyable, but the cylinder will not fit oval-profile or round-profile lock cases.

Highlights

  • High-security 5-pin tumbler resists picking
  • Solid brass body and plug ensure durability
  • Steel cam and cogwheel withstand heavy use
  • Rekeyable design allows key changes easily
  • 360-degree rotation with key or thumbturn

Specifications

BrandMarks USA
Model2621/26D
FinishSatin Chrome
TypeEuro Profile Cylinder
KeyingKeyed Different
Commercial/ResidentialCommercial

Questions about this item

How can I verify the cylinder operates correctly after installation?

Turn the key or thumbturn through the full 360 degree rotation; the cam should engage the mortise lock smoothly in both directions.

What comes in the box and what must I source separately?

The cylinder body with interior turn knob and two keys are included; a euro-profile mortise lock case and mounting screws are not supplied.

Which version suits a standard European mortise lock?

Model 2621 with the 2-1/2 inch body length matches common euro-profile mortise preparations.

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