---
product_id: 544956588
title: "Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs"
brand: "bettomshin"
price: "€ 64.70"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/544956588-bettomshin-internal-tooth-star-washers-5x12mm-304-stainless-steel-push
store_origin: SK
region: Slovakia
---

# 5mm Bore Diameter 12mm Outer Diameter 304 Stainless Steel Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs

**Brand:** bettomshin
**Price:** € 64.70
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock It Down: The Ultimate Fastener for Every Project!

## Quick Answers

- **What is this?** Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs by bettomshin
- **How much does it cost?** € 64.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/544956588-bettomshin-internal-tooth-star-washers-5x12mm-304-stainless-steel-push)

## Best For

- bettomshin enthusiasts

## Why This Product

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

## Key Features

- • **💪 Built to Last:** Crafted from 304 stainless steel for superior durability and corrosion resistance.
- • **🔧 Enhanced Friction:** Creates a strong grip to prevent loosening, ensuring your projects stay intact.
- • **🔒 Secure Your Projects:** Experience unmatched locking power with our Internal Tooth Star Washers.
- • **⚡ Effortless Installation:** Designed for quick and easy installation—no special tools required!
- • **🌍 Versatile Applications:** Perfect for vehicles, machinery, furniture, and more—your go-to fastener!

## Overview

The Bettomshin Internal Tooth Star Washers are precision-engineered fasteners made from durable 304 stainless steel. With a bore diameter of 5mm and an outer diameter of 12mm, these washers provide exceptional corrosion resistance and are ideal for a variety of applications, including vehicles, machinery, and furniture. Easy to install and designed for a secure fit, they ensure your projects remain stable and reliable.

## Description

Bettomshin Internal Tooth Star Washers  Description: 1.Internal tooth star lock washers exert a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate, these push nuts can be used as a kind of automobile fasteners. 2.Widely used in machinery equipment, industrial production of shock absorption and insulation,can meet your different needs in daily life. 3.304 stainless steel steel has high durability and resistance to under heavy loads. 4.Swallowing risk, please keep them away from little kids!  Specification: Material: 304 stainless steel Bore Diameter: 5mm/0.20 inch Outer Diameter: 12mm/0.47 inch Washer Type: Star Lock Washer, Internal-Tooth, Lock Washers  Package Content: 40pcs x Internal Tooth Star Washers

## Features

- Dimensions: Bore Diameter: 5mm/0.20"; Outer Diameter: 12mm/0.47"; 5 Points Inner Hole
- This Internal Tooth Star Washer is made of 304 stainless steel so it's sturdy and durable, also has great corrosion resistance for machinery equipment and substrate
- Internal Tooth Star Washer is widely used in product maintenance such as vehicles and wheels; Also in machinery, furniture, electrical appliances, electronic equipment, cars, sports equipment and industrial production of shock absorption and insulation
- The washer exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation
- Easy to install; The washer creates a permanent installation and will lock on plastic or steel; The thickness of the washer is relatively thin, be careful when installing and do not use too much force

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Bettomshin |
| Model Info | AH7900Z1106CA |
| Package Dimensions | 14.1 x 4.4 x 2.7 cm; 15 g |
| Part Number | AH7900Z1106CA |
| Color | Silver |
| Material Type | Stainless Steel |
| Batteries Included? | No |
| Batteries Required? | No |
| Item Weight | 15 g |

## Images

![Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs - Image 1](https://m.media-amazon.com/images/I/61tJao4ncaL.jpg)
![Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs - Image 2](https://m.media-amazon.com/images/I/61NFyvvVogL.jpg)
![Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs - Image 3](https://m.media-amazon.com/images/I/6120i9yt5ML.jpg)
![Bettomshin Internal Tooth Star Washers 5x12mm 304 Stainless Steel Push On Lock Washer Locking 5 Points Clips Fastener for Product Maintenance 40pcs - Image 4](https://m.media-amazon.com/images/I/61cD5ZHMkpL.jpg)

## Available Options

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

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-30*