---
product_id: 333487537
title: "Century Spring C-303 Extension Springs, 12\""
brand: "century spring"
price: "AR$78053"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/333487537-century-spring-c-303-extension-springs-12
store_origin: AR
region: Argentina
---

# 12" length Spring steel Made in USA Century Spring C-303 Extension Springs, 12"

**Brand:** century spring
**Price:** AR$78053
**Availability:** ✅ In Stock

## Summary

> 💪 Spring into Action with Confidence!

## Quick Answers

- **What is this?** Century Spring C-303 Extension Springs, 12" by century spring
- **How much does it cost?** AR$78053 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/333487537-century-spring-c-303-extension-springs-12)

## Best For

- century spring enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Use:** Perfect for a variety of home improvement projects.
- • **Durable Design:** Constructed from high-quality spring steel wire for longevity.
- • **Easy Installation:** Designed for straightforward integration into your projects.
- • **Precision Engineering:** Crafted for optimal performance in pulling applications.
- • **Lightweight Yet Strong:** Weighs only 23g but delivers robust resistance.

## Overview

The Century Spring C-303 Extension Spring is a 12-inch, precision-engineered component made from durable spring steel wire, designed for applications requiring resistance to pulling forces. Manufactured in the USA, this lightweight yet strong spring is perfect for various home improvement projects, ensuring reliability and ease of installation.

## Description

Century Spring C-303 Extension Springs, 12"

## Features

- Century Spring C-303 12" Extension Springs
- Generally close wound helical with ends formed to permit their use in applications requiring resistance to pulling force
- This Product is manufactured in United States

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Jensen (Home Improvement) |
| Part Number | Century Spring - C-303 |
| Product Dimensions | 2.54 x 2.54 x 30.48 cm; 23 g |
| Item model number | Century Spring - C-303 |
| Size | 12 Inch |
| Colour | Silver |
| Material | Spring Steel Wire |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Included Components | Century Spring - C-303 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 23 g |

## Product Details

- **Colour:** Silver
- **Material:** Spring Steel Wire
- **Brand:** Century Spring
- **Item dimensions L x W x H:** 25 x 25 x 305 millimetres
- **Item weight:** 23 Grams

## Images

![Century Spring C-303 Extension Springs, 12" - Image 1](https://m.media-amazon.com/images/I/61YouWVZcyL.jpg)

## Questions & Answers

**Q: HI on the 1.0 x 12'' extension spring there are 2 lengths one is 12in closed I need the max expanded length? I need to it to expand 32inches**
A: It looks like this only extends to about 24".  Starts at 12" collapsed length and has a suggested max deflection of about 12".  Also suggested max load rating, if you need it, is about 35 pounds.

**Q: Can this be used on a french door to hang a curtain panel; needs to extend o 24 inches?**
A: I think so.  It's recommended maximum extension is 24" so your right at the end what it's rated for.

**Q: Is this spring galvanized?**
A: Close, it's not galvanized but zinc plated instead.

**Q: what is the OD?**
A: It is 1" outside diameter.

## Frequently Bought Together

- Century Spring C-303 Extension Springs, 12"
- SATC Flap Discs 115mm 20 Pack Grinding Discs 40/60/80/120 Grit for Angle Grinder to Sanding Grinding Metal Wood

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-20*