---
product_id: 243050731
title: "NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N)"
brand: "nacx"
price: "$18.89"
currency: USD
in_stock: true
reviews_count: 8
category: "Nacx"
url: https://www.desertcart.us/products/243050731-nacx-ball-plunger-ball-detent-spring-plunger-screw-20pcs-4
store_origin: US
region: United States of America
---

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

**Brand:** nacx
**Price:** $18.89
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in precision, unlock your project’s potential!

## 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?** $18.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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-Packed Bulk Set:** 20 high-quality plungers to keep your projects running smoothly
- • **Effortless Installation:** Press-in design for quick, tool-free fastening
- • **Compact Precision Engineering:** 4mm diameter & 5mm length for exact positioning
- • **Premium Stainless Steel Build:** 304-grade polished finish ensures corrosion resistance and longevity
- • **Versatile Industrial Application:** Ideal for mechanical equipment, molds, clamps, and automation machinery

## Overview

The NACX Ball Plunger set includes 20 precision-engineered plungers made from durable 304 stainless steel, featuring a compact 4mm diameter and 5mm length. Designed for effortless press-in installation, these plungers provide reliable positioning, locking, and indexing in mechanical and automation applications, making them an essential tool for professionals seeking accuracy and durability.

## 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: High quality Ball Spring Plunger! - I picked up the 2x3mm one for a case project I'm working on. I'm actually surprised how well these work given the size of it. How is that even possible?! I give this 10/10.
Review: great value! - Better than I expected.

## 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 | #54,932 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Metalworking Ball Nose Spring Plungers |
| Date First Available | June 24, 2019 |
| Finish Type | Polished |
| Item Weight | 0.176 ounces |
| Item model number | 77-79 |
| Manufacturer | NACX |
| Number of Pieces | 20 |
| Package Dimensions | 2.52 x 1.85 x 0.39 inches |

## Product Details

- **Brand:** NACX
- **Color:** Silver Tone
- **Item Diameter:** 4 Millimeters
- **Pin type:** Spring
- **Size:** 4x5（10N）

## 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

### ⭐⭐⭐⭐⭐ High quality Ball Spring Plunger!
*by C***Z on February 5, 2025*

I picked up the 2x3mm one for a case project I'm working on. I'm actually surprised how well these work given the size of it. How is that even possible?! I give this 10/10.

### ⭐⭐⭐⭐⭐ great value!
*by J***F on January 17, 2026*

Better than I expected.

### ⭐⭐⭐⭐⭐ Great for 3D printing
*by O***R on December 1, 2024*

These work well for 3D printed parts such as slide latch lids. The prints do need to be thick enough to support these tiny parts so they don't punch through the plastic.

## Frequently Bought Together

- NACX Ball Plunger, Ball Detent, Spring Plunger Screw, 20Pcs (4 x 5, 10N)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-16*