---
product_id: 128018107
title: "INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects"
brand: "invento"
price: "1779 som"
currency: KGS
in_stock: false
reviews_count: 8
url: https://www.desertcart.kg/products/128018107-invento-2pcs-en31-rustproof-steel-smooth-rod-8mm-od-400mm
store_origin: KG
region: Kyrgyzstan
---

# Precise 8mm OD for exact fits 400mm length ideal for versatile projects EN31 Hard Chromed steel for durability INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects

**Brand:** invento
**Price:** 1779 som
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Elevate your build game with precision steel rods that never quit!

## Quick Answers

- **What is this?** INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects by invento
- **How much does it cost?** 1779 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/128018107-invento-2pcs-en31-rustproof-steel-smooth-rod-8mm-od-400mm)

## Best For

- invento enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from EN31 hard chromed steel, ensuring rustproof strength and long-lasting performance.
- • **Dual Power Pack:** Includes 2 rods, doubling your DIY potential without extra hassle.
- • **Precision Perfect:** Engineered with an exact 8mm outside diameter for seamless integration in CNC and robotics setups.
- • **Lightweight Yet Strong:** At just 500 grams total, these rods offer robust support without weighing down your build.
- • **Versatile Compatibility:** Ideal for 3D printers, CNC machines, robotics, and all your innovative DIY projects.

## Overview

The INVENTO 2pcs EN31 Rustproof Steel Smooth Rods feature a precise 8mm outside diameter and 400mm length, made from durable, hard chromed EN31 steel. Perfectly suited for CNC, robotics, 3D printing, and DIY projects, these rustproof rods come in a convenient 2-pack, combining strength and versatility for professional-grade builds.

## Description

Outside Diameter: 8mm Length: 400 mm (0.4 meter) Material: EN-31 (Hard Chromed) Qty: 2pcs Application: 3D Printer, CNC, Robotics, DIY Projects etc

Review: Quality - Recently I ordered these 8mmOD 400mm long smooth rods 6 pieces for my CoreXY build and I got all 6 rods in excellent condition, all straight and no rust. Definitely go for them.
Review: Finishing and quality - Good finishing and quality

## Features

- Outside Diameter: 8mm
- Length: 400 mm (0.4 meter)
- Material: EN-31 (Hard Chromed)
- Qty: 2pcs
- Application: 3D Printer, CNC, Robotics, DIY Projects etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RR14N72 |
| Best Sellers Rank | #12,942 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #328 in Robotic Kits & Accessories |
| Brand | INVENTO |
| Brand Name | INVENTO |
| Colour | Silver |
| Customer Reviews | 4.2 out of 5 stars 103 Reviews |
| Importer Contact Information | INVENTO |
| Item Diameter | 8 Millimetres |
| Item Dimensions | 40 x 0.8 x 0.8 Centimeters |
| Item Form | Rod |
| Item Shape | Cylindrical |
| Item Thickness | 8 Millimetres |
| Item Type Name | INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects |
| Item Weight | 500 Grams |
| Item dimensions L x W x H | 40 x 0.8 x 0.8 Centimeters |
| Manufacturer | INVENTO, INVENTO SALES CORPORATION |
| Manufacturer Contact Information | INVENTO SALES CORPORATION |
| Model Number | ISC 1483 |
| Number of Items | 2 |
| Packer Contact Information | INVENTO |
| Part Number | ISC 1483 |
| Shape | Cylindrical |
| Unit Count | 2 Count |

## Product Details

- **Brand:** INVENTO
- **Colour:** Silver
- **Item Diameter:** 8 Millimetres
- **Item dimensions L x W x H:** 40 x 0.8 x 0.8 Centimeters
- **Shape:** Cylindrical

## Images

![INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects - Image 1](https://m.media-amazon.com/images/I/41g5ZIMzgoL.jpg)
![INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects - Image 2](https://m.media-amazon.com/images/I/61AATfaQYRL.jpg)
![INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects - Image 3](https://m.media-amazon.com/images/I/51GOUurGtUL.jpg)
![INVENTO 2pcs EN31 Rustproof Steel Smooth Rod 8mm OD 400mm (0.4 mtr) Long for CNC Robotics Machines DIY Projects - Image 4](https://m.media-amazon.com/images/I/31KRI9Nn2AL.jpg)

## Questions & Answers

**Q: is it stainless steel**
A: Invento EN31 steel rod is not Stainless Steel. 
Normal Carbon Steel is an alloy of Iron and Carbon. Stainless Steel should contain at least 10.5% Chromium and less than 1.2% Carbon. 
EN31 steel contains 1.4% Chromium, 0.5% Manganese, 0.2% Silicon and 1% Carbon. 
Invento EN31 steel rod is 'hard chrome plated' and used in industrial applications for its hardenability, wear resistance and corrosion resistance. 
For normal applications EN31 steel rod is rustproof and abrasion resistant.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality
*by S***M on 19 March 2026*

Recently I ordered these 8mmOD 400mm long smooth rods 6 pieces for my CoreXY build and I got all 6 rods in excellent condition, all straight and no rust. Definitely go for them.

### ⭐⭐⭐⭐⭐ Finishing and quality
*by J***R on 26 April 2026*

Good finishing and quality

### ⭐⭐⭐⭐ Good product
*by N***J on 16 November 2021*

Value for money

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-09-30*