---
product_id: 243050731
title: "NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N)"
brand: "nacx"
price: "R400"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Nacx"
url: https://www.desertcart.co.za/products/243050731-nacx-ball-plunger-ball-detent-spring-plunger-screw-20pcs-4
store_origin: ZA
region: South Africa
---

# Bulk 20-piece set Durable 304 stainless steel Precision 4mm diameter NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N)

**Brand:** nacx
**Price:** R400
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in precision, unlock your workflow!

## Quick Answers

- **What is this?** NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N) by nacx
- **How much does it cost?** R400 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/243050731-nacx-ball-plunger-ball-detent-spring-plunger-screw-20pcs-4)

## Best For

- nacx enthusiasts

## Why This Product

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

## Key Features

- • **Value Pack:** 20 high-quality plungers in one set to keep your projects running smoothly.
- • **Premium Durability:** Crafted from corrosion-resistant 304 stainless steel to withstand heavy use.
- • **Precision Engineering:** 4mm diameter and 5mm length for exact positioning and reliable indexing.
- • **Versatile Application:** Ideal for mechanical equipment, molds, clamps, and automated machinery.
- • **Effortless Installation:** Simple press-in design ensures quick and secure fastening without hassle.

## Overview

The NACX Ball Plunger set includes 20 polished 304 stainless steel plungers, each with a 4mm diameter and 5mm length. Designed for precise positioning, locking, and indexing in mechanical and automated equipment, these durable spring plungers offer easy installation and reliable performance, making them essential for professionals seeking efficiency and accuracy.

## Description

Specification: Product Name: Ball Plunger Body Diameter: 4mm/0.157” Body Length: 5mm/0.196” Ball Diameter: 3mm/0.118” Color: Silver Tone Material: 304 Stainless Steel Function: Ball plunger is used for fixing point, fixed indexing, positioning, grading, locking, locking, latching, ejecting, lifting. Package Included: 20 x Ball Plungers

Review: Great - I use these everyday for one of my products. Never had a problem. Consistent sizes.
Review: Works - Required a but of retrofitting but fit the need

## Features

- Product Name: ball plunger; Package Content: 20pcs of ball plunger
- Body Diameter: 4mm/0.157”; Body Length: 5mm/0.196”; Material: 304 stainless steel
- Easy to Use: easy to install and convenient to use, just press it in for fastening.
- Main Features: they are important components for providing pressure and accurate positioning.
- Application: widely used in mechanical equipment, clamps, molds, automatic machinery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07THRN5GH |
| Best Sellers Rank | #104,698 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Metalworking Ball Nose Spring Plungers |
| Brand | NACX |
| Color | Silver Tone |
| Compatible Groove Diameter | 4 millimeters |
| Customer Reviews | 4.4 out of 5 stars 91 Reviews |
| Fastener Type | Spring |
| Finish Type | Polished |
| Finish Types | Polished |
| Item Diameter | 4 millimeters |
| Manufacturer | NACX |
| Model | 77-79 |
| Number Of Items | 20 |
| Number of Pieces | 20 |
| Outside Diameter | 4 millimeters |
| Part Number | 77-79 |
| Pin Type | Spring |
| Pin type | Spring |
| Screw Head Style | Ball |
| Set Name | 20-Piece Set |
| Size | D4x5 |
| Size Name | D4x5 |

## Product Details

- **Brand:** NACX
- **Color:** Silver
- **Item Diameter:** 2 millimeters
- **Pin type:** Spring
- **Size:** 2mm x 3mm

## Images

![NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N) - Image 1](https://m.media-amazon.com/images/I/61P9t9Lt8HL.jpg)
![NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N) - Image 2](https://m.media-amazon.com/images/I/51hJIBLepxL.jpg)
![NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N) - Image 3](https://m.media-amazon.com/images/I/51f6wmOoeTL.jpg)
![NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N) - Image 4](https://m.media-amazon.com/images/I/61n+TNPT6yL.jpg)
![NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N) - Image 5](https://m.media-amazon.com/images/I/512mt5jAFaL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: do any of your ball plunger offer air tight seal between the ball and housing?**
A: It seems that there is no.

**Q: When will 10x13 size be available again? No longer listed.**
A: Because global shipping is very busy nowadays. It is estimated that it will take nearly a month to replenish it.

**Q: what are the dimensions for the 2x3 ball plungers?**
A: I purchased a different size than you are asking about, but the product description for the 2x3 says 
Body Diameter: 2mm/0.078”
Body Length: 3mm/0.118”
Ball Diameter: 1.5mm/0.059”

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by J***Y on April 15, 2026*

I use these everyday for one of my products. Never had a problem. Consistent sizes.

### ⭐⭐⭐⭐⭐ Works
*by T***Y on December 9, 2025*

Required a but of retrofitting but fit the need

### ⭐⭐⭐⭐ Tiny
*by Z***G on July 15, 2026*

Way smaller than I thought they were but they work as intended

## Frequently Bought Together

- NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N)
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**Shop now:** [https://www.desertcart.co.za/products/243050731-nacx-ball-plunger-ball-detent-spring-plunger-screw-20pcs-4](https://www.desertcart.co.za/products/243050731-nacx-ball-plunger-ball-detent-spring-plunger-screw-20pcs-4)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-28*