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Tuff Stuff

Tuff Stuff Em-D-Kay 48 Polished Brass 2-1/4" Solid Door Knob Set Split Spindle 20 TPI

SKU CH-FQY0-RWZZW

Solid brass door knob set with split spindle fits Marks Metro surface-mount mortise locksets

  • FinishPolished Brass
  • Selling UnitBox
  • TypeSolid Brass Door Knob Set With Split Spindle For Marks Metro
  • FeaturesFits 91A/3, 91A/3-X, 91DW/3, 91D/3, 71A/3, 9200A/3, 7200A/3
  • MaterialBrass
  • StyleKnobs
  • Direct replacement for Marks Metro locksets
  • Polished brass finish resists tarnish and wear
  • Solid brass construction ensures long-lasting durability
  • Split spindle with 20 TPI enables secure operation
  • Trusted design used for over 60 years

Polished Brass Knob Set

This solid brass door knob set matches the Em-D-Kay 48 pattern and fits Marks Metro surface-mount mortise locksets. The polished brass finish suits period restorations and traditional interiors. Supplied as one pair per box with two sets of screws per knob. Ideal for owners of compatible Metro hardware who need a direct replacement.

Split Spindle Fit

The 20 TPI split spindle engages the latch mechanism on Metro models 91A/3, 91A/3-X, 91DW/3, 91D/3, 71A/3, 9200A/3 and 7200A/3 plus imported versions. No lock body modification is required. Existing roses and escutcheons remain in place. Builders who need a different spindle thread or a non-split spindle cannot use this kit.

Included Fasteners

Two sets of mounting screws are provided with each knob, so the original hardware can be discarded. The extra set covers stripped holes or thicker door panels. No spindle wrench, lubricant or strike-plate hardware is included. Installers who prefer through-bolt mounting or need longer screws must source them separately.

Highlights

  • Direct replacement for Marks Metro locksets
  • Polished brass finish resists tarnish and wear
  • Solid brass construction ensures long-lasting durability
  • Split spindle with 20 TPI enables secure operation
  • Trusted design used for over 60 years

Specifications

BrandEm-D-Kay
Model48
FinishPolished Brass
Selling UnitBox
TypeSolid Brass Door Knob Set With Split Spindle For Marks Metro Series Surface Mount Mortise Lockset
FeaturesFits 91A/3, 91A/3-X, 91DW/3, 91D/3, 71A/3, 9200A/3, 7200A/3 and the Imported Versions of these Models
MaterialBrass
StyleKnobs
SeriesLike Marks Metro K9290/3 Knob Kit

Questions about this item

How does the 20 TPI split spindle hold up under constant daily operation?

The solid brass construction and 20 threads per inch spindle are built for long-term use on Marks Metro surface mount mortise locksets, with this design serving as a popular replacement for over 60 years.

Does the polished brass finish or solid brass material create noticeable heat or friction during all-day use?

Polished brass on solid brass operates at ambient temperature with minimal friction; the 20 TPI split spindle moves smoothly inside the lockset without generating detectable heat or noise.

Which Marks Metro lockset models must already be installed for this Em-D-Kay 48 knob set to fit?

It fits Marks Metro series 91A/3, 91A/3-X, 91DW/3, 91D/3, 71A/3, 9200A/3, 7200A/3 and imported versions of these models.

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