---
product_id: 59567787
title: "4520 9/32\" X 4-3/4\" Swivel Square Spindle with Stop Pin"
brand: "tuff stuff"
price: "$29"
currency: NZD
in_stock: true
reviews_count: 8
category: "Tuff Stuff"
url: https://www.desertcart.nz/products/59567787-4520-9-32-x-4-3-4-swivel-square-spindle
store_origin: NZ
region: New Zealand
---

# 4.75-inch precision length 20 TPI long thread pitch Stop pin for secure fit 4520 9/32" X 4-3/4" Swivel Square Spindle with Stop Pin

**Brand:** tuff stuff
**Price:** $29
**Availability:** ✅ In Stock

## Summary

> 🔐 Upgrade your door game with precision and durability!

## Quick Answers

- **What is this?** 4520 9/32" X 4-3/4" Swivel Square Spindle with Stop Pin by tuff stuff
- **How much does it cost?** $29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/59567787-4520-9-32-x-4-3-4-swivel-square-spindle)

## Best For

- tuff stuff enthusiasts

## Why This Product

- Trusted tuff stuff brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Installation:** Designed for quick replacement without locksmith fees
- • **Versatile Compatibility:** Ideal for surface mount mortise locksets and skeleton key sets
- • **Durable Alloy Steel Build:** Polished stainless steel finish for lasting strength and style
- • **Secure Stop Pin Mechanism:** Prevents handle slippage, ensuring reliable operation
- • **Precision Engineered Length:** 4.75 inches of perfect fit for thicker doors

## Overview

The Tuff Stuff 4520 Swivel Square Spindle is a 4.75-inch long, 9/32" thick alloy steel replacement spindle featuring a 20 TPI thread and a secure stop pin. Designed for surface mount mortise locksets, it offers easy installation and reliable performance, making it the go-to choice for upgrading or repairing thicker doors with style and durability.

## Description

Tuff Stuff 4520 9/32" X 4-3/4" Swivel Square Spindle with Stop Pin Long 20 TPI A Replacement For Surface Mount Mortise Locksets And More

Review: Works very well to install door lock on thicker doors - This is exactly what I needed for my mortise lock with skeleton key set. The door was a bit thicker than the standard, so I purchased this longer spindle and it works just as expected! Pleased with this purchase, and easy installation.
Review: Just works - Have to replace every 8 years or so does the job saves me a locksmith fee

## Features

- Long 20 TPI
- With Stop Pin
- A Replacement For Surface Mount Mortise Locksets And More

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071RY2THT |
| Assembled Diameter | 0.5 Inches |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #88,815 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Replacement Spindles |
| Brand | Tuff Stuff |
| Color | Gray |
| Customer Reviews | 4.4 4.4 out of 5 stars (50) |
| Cutting Diameter | 0.5 Inches |
| Date First Available | May 8, 2017 |
| Exterior Finish | Stainless Steel |
| Finish | Polished |
| Hand Orientation | Ambidextrous |
| Handle Attachment Mechanism | Stop Pin |
| Handle Material | Alloy Steel |
| Included Components | Screw |
| Is Discontinued By Manufacturer | No |
| Item Depth | 4.75 inches |
| Item Weight | 1.58 ounces |
| Item model number | 4520 |
| Lock Type | Mortise Lock |
| Manufacturer | Tuff Stuff |
| Material | Alloy Steel |
| Metal Type | Alloy Steel |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | 4520 |
| Product Dimensions | 4.75"L x 0.5"W |
| Projection Distance | 4.75 Inches |
| Special Feature | Easy to Install |
| Special Features | Easy to Install |
| UPC | 608781045205 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Tuff Stuff
- **Color:** Gray
- **Material:** Alloy Steel
- **Product Dimensions:** 4.75"L x 0.5"W
- **Style:** Modern

## Images

![4520 9/32" X 4-3/4" Swivel Square Spindle with Stop Pin - Image 1](https://m.media-amazon.com/images/I/316jWp5MZkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works very well to install door lock on thicker doors
*by G***S on November 25, 2025*

This is exactly what I needed for my mortise lock with skeleton key set. The door was a bit thicker than the standard, so I purchased this longer spindle and it works just as expected! Pleased with this purchase, and easy installation.

### ⭐⭐⭐⭐⭐ Just works
*by M***I on July 11, 2025*

Have to replace every 8 years or so does the job saves me a locksmith fee

### ⭐⭐⭐⭐⭐ Good fit
*by M***E on April 8, 2025*

Fixed my Lock....

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**Shop now:** [https://www.desertcart.nz/products/59567787-4520-9-32-x-4-3-4-swivel-square-spindle](https://www.desertcart.nz/products/59567787-4520-9-32-x-4-3-4-swivel-square-spindle)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-20*