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Satin chrome two-piece steel spindle, square shaft with threaded ends

Progressive Hardware Co., Inc.

Progressive Hardware Co., Inc. 46-20-3-1/2 door lock spindle 9/32" square x 3-1/2" long 3/8"-20 TPI

SKU CH-G0ES-A5281 MPN 46-20-3-1/2

A two-piece sectional steel spindle measuring 9/32 inch square by 3-1/2 inches long with 3/8-20 TPI threads, compatible with Corbin Russwin, Yale, Marks, Norwalk, National.

  • FinishSatin Chrome
  • Selling UnitBox
  • KeyingKeyed Different
  • Two-piece sectional design simplifies vintage knob replacement
  • 9/32" square steel shaft fits Corbin Russwin and Yale hardware
  • 3/8"-20 thread pitch matches original factory specifications
  • Satin chrome finish resists corrosion on interior doors
  • Steel construction provides lasting strength for daily use

Door Lock Spindle 9/32" Square

This two-piece sectional spindle measures 9/32" square by 3-1/2" long with 3/8"-20 threads per inch. It is made of steel with a satin chrome finish. The part replaces worn spindles on vintage door knob sets from brands including Corbin Russwin, Yale, and Baldwin. It suits restorers and maintenance teams fitting period hardware.

Two Piece Sectional Capacity

The 3-1/2" length spans standard door thicknesses found in older residential and commercial openings. The 9/32" square section fits matching knob broaches without play. Steel construction resists twisting force from daily operation. It will not suit modern tubular latchsets that require a solid spindle or a different square dimension.

3/8"-20 Thread Limit

The 3/8"-20 thread pitch matches the listed vintage knob threads exactly. Knobs with a different thread count or diameter will not engage. The sectional design allows the two halves to meet inside the latch hub. Locksets using a through-bolt or set-screw retention method cannot use this spindle.

Highlights

  • Two-piece sectional design simplifies vintage knob replacement
  • 9/32" square steel shaft fits Corbin Russwin and Yale hardware
  • 3/8"-20 thread pitch matches original factory specifications
  • Satin chrome finish resists corrosion on interior doors
  • Steel construction provides lasting strength for daily use

Specifications

BrandProgressive Hardware Co., Inc.
Model46-20-3-1/2
FinishSatin Chrome
Selling UnitBox
KeyingKeyed Different

Questions about this item

Will the 9/32" square spindle fit my existing Corbin Russwin or Yale vintage knobs?

Yes, the 9/32" square by 3-1/2" long steel spindle is designed as a direct replacement for Corbin Russwin, Yale, Marks, Norwalk, National, Baldwin, Progressive and most vintage door knobs using that square size.

How can I verify the 3/8"-20 TPI threading engages correctly after installation?

Thread each section into the knob hubs; the 3/8"-20 threads should turn smoothly without binding and the two halves should meet flush in the centre when the knobs are tightened.

Does the box contain both spindle halves and any set screws, or must I source fasteners separately?

The box supplies the two-piece sectional steel spindle with satin chrome finish; set screws or other fasteners are not included and must be purchased separately if your knobs require them.

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