---
product_id: 185152851
title: "Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness"
brand: "sydien"
price: "¥4170"
currency: JPY
in_stock: true
reviews_count: 2
url: https://www.desertcart.jp/products/185152851-sydien-6pcs-304-stainless-steel-seamless-welded-o-ring-marine
store_origin: JP
region: Japan
---

# 30mm Diameter 6mm Thickness Stainless Steel Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness

**Brand:** sydien
**Price:** ¥4170
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Projects with Seamless Precision!

## Quick Answers

- **What is this?** Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness by sydien
- **How much does it cost?** ¥4170 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/185152851-sydien-6pcs-304-stainless-steel-seamless-welded-o-ring-marine)

## Best For

- sydien enthusiasts

## Why This Product

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

## Key Features

- • **💪 Pack of 6:** Get a complete set of 6 O-rings to tackle all your rigging and fastening needs.
- • **🔗 Seamless Design:** Fine seamless welding process guarantees a smooth, burr-free finish for safe handling.
- • **✨ Precision Polished:** High-precision polished surface enhances rust resistance, ensuring longevity.
- • **🔒 Unmatched Durability:** Crafted from high-quality 304 stainless steel for superior hardness and wear-resistance.
- • **⚓ Versatile Applications:** Perfect for marine fittings, paracord projects, hanging baskets, and more.

## Overview

This set of 6 high-quality 304 stainless steel seamless welded O-rings features a 30mm inner diameter and 6mm thickness, making them ideal for various applications including marine fittings, paracord crafting, and more. With a polished surface for enhanced rust resistance and a smooth finish, these O-rings are designed for durability and versatility.

## Description

Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness

## Features

- 👍Package Content:6Pcs O Rings.Ring Thickness:6mm/0.24''.Ring Inner Diameter:30mm/1.18''.
- 👍Made of high-quality stainless steel with high hardness and wear-resistance.
- 👍High-precision polished surface,enhance the rust resistance of the O ring.
- 👍Adopting a fine seamless welding process,the surface is smooth and burr-free.
- 👍Suitable for paracord, hanging basket,rigging kayaks,dog collar,etc.

## Images

![Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness - Image 1](https://m.media-amazon.com/images/I/61sove+iRrL.jpg)
![Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness - Image 2](https://m.media-amazon.com/images/I/51C9LrCAhBL.jpg)
![Sydien 6Pcs 304 Stainless Steel Seamless Welded O-Ring for Marine Boat Fittings,30mm Inner Diameter 6mm Thickness - Image 3](https://m.media-amazon.com/images/I/51GLJIFCrgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice o-rings
  

*by M***A on Reviewed in the United States on April 17, 2022*

They really are smooth and seamless. Would definitely buy again.

### ⭐ 1.0 out of 5 stars







  
  
    Nice but wrong size
  

*by J***R on Reviewed in the United States on February 25, 2019*

Picture plainly shows they are WRONG size. Don't advertise them as 30mm when they are 35mm! Inside diameter.12 bucks down the drain!!

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-28*