---
product_id: 223189341
title: "JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner)"
brand: "generic"
price: "€ 12.64"
currency: EUR
in_stock: true
reviews_count: 8
category: "Generic"
url: https://www.desertcart.es/products/223189341-jlb-plastics-uk-black-plastic-dome-bolt-nut-protection-cap
store_origin: ES
region: Spain
---

# Easy push-on or hot water install M8 / 13mm precision fit High-quality LDPE plastic durability JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner)

**Brand:** generic
**Price:** € 12.64
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your hardware game with sleek, secure bolt protection!

## Quick Answers

- **What is this?** JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) by generic
- **How much does it cost?** € 12.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/223189341-jlb-plastics-uk-black-plastic-dome-bolt-nut-protection-cap)

## Best For

- generic enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Dome Design:** Provides a polished, professional finish that prevents scratches and snagging.
- • **Bulk Pack Convenience:** 20 caps per pack—perfect for serious DIYers and pros who value readiness and efficiency.
- • **Effortless Installation:** Simply push on or soak in hot water for a snug, hassle-free application.
- • **Precision Fit for M8 Bolts:** ISO 965 standard ensures a flawless, secure fit every time.
- • **Durable Weather-Resistant Material:** Crafted from premium LDPE plastic to protect against rust and corrosion indoors or out.

## Overview

JLB Plastics UK's Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20, M8 / 13mm Spanner) deliver precision-fit protection with durable LDPE plastic. Designed to shield bolt ends from damage and corrosion, these easy-to-install caps offer a clean, professional finish ideal for both indoor and outdoor projects. Trusted by DIY enthusiasts and professionals alike, they combine ISO 965 thread standards with practical bulk packaging to keep your hardware secure and stylish.

## Description

JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) : desertcart.co.uk: DIY & Tools

Review: Great price and quality - Fast delivery and perfect size and depth for protecting bolt ends to stop them scratching items.
Review: Unassuming Yet Invaluable: A Versatile Addition to Your Hardware Stash ⚙️ - When it comes to DIY projects or household repairs, the unassuming M12 Plastic Nut/Bolt Cap might not seem like a game-changer, but trust me, this little gem is an absolute must-have in your hardware arsenal. 🔩 Firstly, let's appreciate the convenience of these caps coming in a pack of 10. No more scrambling for that elusive missing cap or overspending on unnecessary extras. Just the right amount to tackle your tasks with ease. 👌 The plastic material might not exude the ruggedness of metal, but it brings its own set of advantages to the table. These caps offer excellent weather resistance and insulation properties, making them ideal for both indoor and outdoor applications. 🌧️ Plus, they provide a smooth, professional-looking finish that conceals those unsightly exposed threads. Goodbye, snagged clothing and scratched surfaces! However, it's worth noting that plastic caps may not be the best choice for high-stress or heavy-duty applications where maximum strength is required. But for most household projects, they'll serve you well. 💪 One aspect that truly stands out is the adherence to ISO 965 standards for metric threads. This ensures a precise fit with any compatible M12 bolt or nut, eliminating the frustration of mismatched hardware. Talk about attention to detail! 🎯 While finding the right hardware can indeed be daunting, with these caps in your toolkit, you'll have one less thing to worry about. They might be small, but their impact on your projects can be significant. 💯 In conclusion, whether you're a seasoned DIYer or a newcomer to the world of home repairs, the M10 Plastic Nut/Bolt Cap is a versatile and practical addition to your hardware stash. Embrace the convenience, weather resistance, and clean finish it offers, and let these little gems elevate your DIY game to new heights. 🚀

## Features

- Colour: Black
- Sizes Available: M4, M5, M6, M8, M10, M12, M14, M16, M18, M20
- Packs Available: 5, 10, 20, 50, 100, 250, 500, 1000, 2000
- Made from high quality Polyethylene Low Density LDPE plastic
- Easy to install and secure, just push them on or soak in hot water for an even easier application!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CZ6555L |
| Best Sellers Rank | 3,274 in Automotive ( See Top 100 in Automotive ) 6 in Bolt & Nut Covers for Cars |
| Colour | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (583) |
| Cutting Diameter | 8 Millimetres |
| Date First Available | 14 July 2020 |
| Head Style | Dome |
| Item Package Quantity | 20 |
| Item diameter | 8 Millimetres |
| Manufacturer | Plastic Mouldings Direct |
| Manufacturer reference | JLB003 |
| Material | Nylon, Plastic |
| Number of Pieces | 20 |
| Part number | JLB003 |
| Shape | Dome |
| Size | M8 / 13mm Spanner |

## Product Details

- **Brand:** Generic
- **Colour:** Black
- **Exterior finish:** Plastic,Nylon
- **Fastener type:** Acorn
- **Inside-thread size:** M8
- **Material:** Nylon, Plastic
- **Size:** M8 / 13mm Spanner
- **Thread class:** Class 2A
- **Thread coverage:** Fully Threaded
- **Thread size:** M 8

## Images

![JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) - Image 1](https://m.media-amazon.com/images/I/31GWg1jP9BL.jpg)
![JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) - Image 2](https://m.media-amazon.com/images/I/31qmO1a8WsL.jpg)
![JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) - Image 3](https://m.media-amazon.com/images/I/410XSHi0iKL.jpg)
![JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) - Image 4](https://m.media-amazon.com/images/I/411Huvz4uqL.jpg)
![JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner) - Image 5](https://m.media-amazon.com/images/I/61FmSr9-Z3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great price and quality
*by S***E on 3 October 2025*

Fast delivery and perfect size and depth for protecting bolt ends to stop them scratching items.

### ⭐⭐⭐⭐⭐ Unassuming Yet Invaluable: A Versatile Addition to Your Hardware Stash ⚙️
*by R***D on 22 May 2024*

When it comes to DIY projects or household repairs, the unassuming M12 Plastic Nut/Bolt Cap might not seem like a game-changer, but trust me, this little gem is an absolute must-have in your hardware arsenal. 🔩 Firstly, let's appreciate the convenience of these caps coming in a pack of 10. No more scrambling for that elusive missing cap or overspending on unnecessary extras. Just the right amount to tackle your tasks with ease. 👌 The plastic material might not exude the ruggedness of metal, but it brings its own set of advantages to the table. These caps offer excellent weather resistance and insulation properties, making them ideal for both indoor and outdoor applications. 🌧️ Plus, they provide a smooth, professional-looking finish that conceals those unsightly exposed threads. Goodbye, snagged clothing and scratched surfaces! However, it's worth noting that plastic caps may not be the best choice for high-stress or heavy-duty applications where maximum strength is required. But for most household projects, they'll serve you well. 💪 One aspect that truly stands out is the adherence to ISO 965 standards for metric threads. This ensures a precise fit with any compatible M12 bolt or nut, eliminating the frustration of mismatched hardware. Talk about attention to detail! 🎯 While finding the right hardware can indeed be daunting, with these caps in your toolkit, you'll have one less thing to worry about. They might be small, but their impact on your projects can be significant. 💯 In conclusion, whether you're a seasoned DIYer or a newcomer to the world of home repairs, the M10 Plastic Nut/Bolt Cap is a versatile and practical addition to your hardware stash. Embrace the convenience, weather resistance, and clean finish it offers, and let these little gems elevate your DIY game to new heights. 🚀

### ⭐⭐⭐⭐⭐ Great to use.
*by F***N on 28 July 2024*

Last year my family purchased a helicopter chair for my birthday. When winter arrived I stored it away in our garden shed, unfortunately when I retrieved it earlier this summer I couldn't find the caps that covered the nuts that hold it together. Looked on Amazon and found these. Brilliant.

## Frequently Bought Together

- JLB Plastics UK - Black Plastic Dome Bolt Nut Protection Cap Covers (Pack of 20 Caps, M8 / 13mm Spanner)
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**Shop now:** [https://www.desertcart.es/products/223189341-jlb-plastics-uk-black-plastic-dome-bolt-nut-protection-cap](https://www.desertcart.es/products/223189341-jlb-plastics-uk-black-plastic-dome-bolt-nut-protection-cap)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-17*