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Steel swivel spindle with satin chrome finish, square shaft and threaded ends

Tuff Stuff

Tuff Stuff 4523 Steel Swivel Spindle 9/32" Square x 4-3/4" Long 20 TPI 3/8

SKU CH-4FY7-JEDF2 MPN 4523

Steel swivel spindle sized 9/32 inch square by 4-3/4 inch long with 20 TPI threading, stop notch and tapped holes for surface-mount mortise locksets

  • FinishSatin Chrome
  • Selling UnitBox
  • KeyingKeyed Different
  • Durable steel construction resists wear on heavy doors
  • Swivel design allows smooth operation for mortise locksets
  • 9/32" square by 4-3/4" long fits standard surface mounts
  • 20 TPI 3/8" threading with stop notch ensures secure installation
  • Tapped holes on both ends provide versatile mounting options

Swivel Spindle Dimensions

This Tuff Stuff 4523 is a steel swivel spindle measuring 9/32" square by 4-3/4" long. It features 20 TPI 3/8" threading with a stop notch and tapped holes on both ends. The satin chrome finish provides corrosion resistance for lasting performance.

Compatibility Guidance

It suits repairs on surface mount mortise locksets needing this exact square size and thread pitch. Builders working with tubular latchsets or modern pre-assembled lock bodies should look elsewhere because the square drive and threading will not match.

Critical Specification

The 9/32" square dimension decides fit; a larger or smaller square will not engage the lock hub correctly. Verify the existing spindle measures exactly this size before ordering.

Highlights

  • Durable steel construction resists wear on heavy doors
  • Swivel design allows smooth operation for mortise locksets
  • 9/32" square by 4-3/4" long fits standard surface mounts
  • 20 TPI 3/8" threading with stop notch ensures secure installation
  • Tapped holes on both ends provide versatile mounting options

Specifications

BrandTuff Stuff
Model4523
FinishSatin Chrome
Selling UnitBox
KeyingKeyed Different

Questions about this item

How do I confirm the 9/32" square spindle fits my surface-mount mortise lockset after installation?

Insert the spindle; the stop notch should engage cleanly and the 3/8"-20 tapped holes on both ends must align with your lockset's set screws without forcing.

What comes in the box and do I need separate set screws for the 3/8"-20 threads?

The box contains the steel swivel spindle model 4523 with satin chrome finish; set screws for the 3/8"-20 tapped holes are not included and must be sourced separately.

Which Tuff Stuff spindle version matches a 9/32" square by 4-3/4" long requirement with 20 TPI threading?

Model 4523 is the exact version: 9/32" square, 4-3/4" overall length, 3/8"-20 threads, stop notch, and tapped holes on both ends for surface-mount mortise locksets.

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