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Hornady

HORNADY 043402 ZIP SPINDLE KIT STRAIGHT WALL RIFLE & PISTOL CARTRIDGES

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Replacement Decapping

Stem for Hornady straight wall

Kit Includes

Threaded spindle, threaded spindle collet,

Use Hornady

Die sets that use the

Existing Expander

Ball is reattached to the

Not Needed

If the expander die spindle

$17.99
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SKU: 043402-090255434026

Overview

This replacement decapping stem kit is intended for Hornady straight wall rifle and pistol die sets that use the older non-threaded spindle design. It includes a threaded spindle, threaded spindle collet, and decapping pin, giving reloaders the parts needed to update compatible dies. Installation requires removing the existing non-threaded spindle, collet, and expander ball, then transferring the expander ball to the new spindle before reassembly. If the die already uses a threaded spindle, this kit is not needed.

Why Hunters Choose the Hornady

Replacement Decapping

Stem for Hornady straight wall

Kit Includes

Threaded spindle, threaded spindle collet,

Converting Compatible

Non-threaded die setups to threaded

Straightforward Installation

Steps are provided in the

Not Needed

For die sets that already

Key Features

  • Replacement decapping stem for Hornady straight wall rifle and pistol die sets
  • Kit includes a threaded spindle, threaded spindle collet, and decapping pin
  • Designed for use with Hornady die sets that use the non-threaded spindle style
  • Existing expander ball is reattached to the new spindle during installation
  • Not needed if the expander die spindle is already threaded
  • All die sets shipped in 2006 and later use the new threaded style

Best Used For

  • Reloaders maintaining Hornady straight wall rifle or pistol die sets with worn decapping components.
  • Users converting older non-threaded die assemblies to the newer threaded spindle setup.
  • Handloaders needing a replacement decapping stem, collet, and pin for compatible Hornady dies.
  • Owners of pre-2006 die sets checking whether a threaded spindle kit is required.
  • Reloading bench users performing straightforward die maintenance without replacing the full die set.

Specifications

CompatibilityHornady straight wall rifle and pistol die sets
Compatibility NoteIf the spindle on the expander die is already threaded, this kit is not necessary
Datestyle NoteAll die sets shipped in 2006 and later are the new threaded style
Installation NotesRemove the non-threaded spindle, collet, and expander ball from the existing die; re-attach the existing expander ball to the new spindle; install the threaded spindle and threaded collet
Kit Contentsthreaded spindle, threaded spindle collet, decapping pin
Replacement PartReplacement decapping stem

Pros

  • Replacement decapping stem for Hornady straight wall rifle and pistol die sets.
  • Kit includes a threaded spindle, threaded spindle collet, and decapping pin.
  • Designed for converting compatible non-threaded die setups to threaded spindle use.
  • Straightforward installation steps are provided in the product description.
  • Not needed for die sets that already use the threaded spindle style.

Considerations & Trade-offs

  • This kit is only needed for Hornady straight wall rifle and pistol die sets with the older non-threaded spindle design; newer threaded dies do not require it.
  • Installation requires removing the existing spindle, collet, and expander ball, then reattaching the expander ball to the new spindle, so it is a replacement part rather than a simple drop-in accessory.
  • The kit is specific to decapping stem replacement and does not add new die functions or change the die set’s overall setup beyond the spindle conversion.

Suggested Comparisons

  • Reloading die replacement parts
  • Straight wall rifle and pistol die sets
  • Decapping stems and spindle kits
  • Reloading press accessories

Suggested Accessories

  • Reloading die accessories
  • Replacement decapping pins
  • Reloading press accessories

Frequently Asked Questions

What is the Hornady 043402 Zip Spindle Kit used for?

It is a replacement decapping stem for Hornady straight wall rifle and pistol die sets.

What parts are included in the kit?

The kit consists of a threaded spindle, threaded spindle collet, and decapping pin.

How do I install this spindle kit?

The source says to remove the non-threaded spindle, collet, and expander ball from the existing die, then re-attach the existing expander ball to the new spindle and install the threaded spindle and threaded collet.

Do I need this kit if my die already has a threaded spindle?

No. The source states that if the spindle on the expander die is already threaded, this kit is not necessary.

Which die sets are already the threaded style?

The source says all die sets shipped in 2006 and later are the new threaded style.