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Steel swivel spindle, satin chrome finish, 9/32 inch square profile

Progressive Hardware Co., Inc.

Progressive Hardware Co., Inc. 45-20-STP Swivel Spindle 9/32" Sq x 4-3/4" 20 TPI door lock

SKU CH-KJ6C-RJE13 MPN 45-20-STP

A steel swivel spindle with 9/32" square shaft, 20 TPI threading, and two 3/8" solid centers for surface-mount mortise locksets

  • FinishSatin Chrome
  • Selling UnitBox
  • KeyingKeyed Different
  • Swivel spindle enables smooth knob operation on mortise locks
  • 9/32" square by 4-3/4" length fits Corbin Russwin #32 replacements
  • 20 TPI threading with 3/8" solid centers ensures secure engagement
  • Tapped holes on unthreaded ends simplify installation
  • Steel construction with satin chrome finish resists corrosion

Swivel Spindle Replacement

The Progressive Hardware 45-20-STP is a steel swivel spindle built to replace worn or broken parts in surface-mount mortise locksets. It fits hardware that uses a 9/32 inch square by 4-3/4 inch long spindle with 20 threads per inch. Installers and maintenance teams use it to restore two-sided knob or lever operation without replacing the entire lock body.

Durability Under Daily Cycling

The solid steel shaft and two 3/8 inch solid centres resist deformation when the lock is operated repeatedly throughout the day. Tapped holes on the unthreaded side secure the spindle to the lock mechanism, preventing the play that develops with lighter-duty spindles after extended use. The satin chrome finish withstands the friction of constant rotation without flaking.

Mortise Lockset Compatibility Limits

This spindle is dimensioned as a direct replacement for Corbin Russwin #32 locksets, so it matches that maker's square drive and thread pitch. It will not suit lock bodies that require a different square size, thread count, or overall length. Buyers with non-standard mortise cases or tubular latchsets need a spindle made to those specific dimensions.

Highlights

  • Swivel spindle enables smooth knob operation on mortise locks
  • 9/32" square by 4-3/4" length fits Corbin Russwin #32 replacements
  • 20 TPI threading with 3/8" solid centers ensures secure engagement
  • Tapped holes on unthreaded ends simplify installation
  • Steel construction with satin chrome finish resists corrosion

Specifications

BrandProgressive Hardware Co., Inc.
Model45-20-STP
FinishSatin Chrome
Selling UnitBox
KeyingKeyed Different

Questions about this item

Does the 45-20-STP spindle generate noise or heat when the door is operated repeatedly all day?

No, the solid steel spindle has no moving parts that produce heat or audible noise during normal latch operation.

Which existing lock components must already be on the door for this 9/32" square spindle to engage correctly?

The door needs a surface-mount mortise lockset with a 3/8"-20 threaded hub that accepts a 9/32" square drive.

Will the 45-20-STP work with an older Corbin Russwin #32 mortise lock that I want to keep?

Yes, this spindle is a direct replacement for the Corbin Russwin #32 and fits the same 20 TPI threaded hub.

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