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Master Lock tulip knob lockset in polished brass finish

Master Lock

Master Lock TUO0403/T6P Tulip Knob Lockset Passage Grade 3

SKU CH-D36E-6T5PY

Tulip-style passage knob set in polished brass fits standard doors and meets ANSI Grade 3

  • TypeDoor Hardware & Components
  • StyleTUO Tulip
  • Tulip knob suits traditional décor with polished brass finish
  • Passage function allows free movement on interior doors without locking
  • ANSI Grade 3 certification confirms basic residential security performance
  • Adjustable backset fits standard doors from 2 3/8 to 2 3/4 inches
  • Steel construction provides durability for everyday household use

Product Identity

The Master Lock TUO0403/T6P is a mechanical passage knob set finished in polished brass with a tulip-style design. It meets ANSI Grade 3 standards and is intended for interior doors where no locking function is required.

Installation Notes

The lockset fits doors from 1 3/8 to 1 3/4 inches thick and works with a backset of 2 3/8 to 2 3/4 inches using a standard 2 1/8 inch crossbore. A 2 1/4 by 1 3/4 inch strike plate is included for the latch.

Buyer Fit

This set suits homeowners or contractors fitting hollow-core or solid interior doors that need a simple turn-to-open mechanism. Buyers who need a keyed entry, privacy locking or a higher security grade should look at alternative hardware.

Highlights

  • Tulip knob suits traditional décor with polished brass finish
  • Passage function allows free movement on interior doors without locking
  • ANSI Grade 3 certification confirms basic residential security performance
  • Adjustable backset fits standard doors from 2 3/8 to 2 3/4 inches
  • Steel construction provides durability for everyday household use

Specifications

BrandMASTER LOCK
TypeDoor Hardware & Components
StyleTUO Tulip

Questions about this item

How can I confirm the Tulip knob set is working properly after installation?

Turn each knob freely; the latch should retract smoothly and extend fully when released, with no binding at the 2 1/8 in. crossbore.

What components are included and what must I supply separately?

The box contains both Tulip knobs, latch mechanism, 2 1/4 x 1 3/4 in. strike plate and mounting screws; you only need a door pre-drilled to 2 1/8 in. crossbore and 1 3/8 to 1 3/4 in. thickness.

Which finish and grade should I select for a standard interior passage door?

Choose the polished brass finish with ANSI Grade 3 rating; it matches the TUO Tulip style and meets the required passage function for interior doors.

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