---
product_id: 637642774
title: "Countersunk Bolt & Nut (4 Pack) M4 X 20mm (Including Head) A2 Stainless Steel Socket Allen Key Head Csk Bolts (Fully Threaded), Nyloc Nuts & Flat Washers (M4 x 20mm)"
brand: "mmbshop"
price: "€ 12.73"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mmbshop"
url: https://www.desertcart.com.cy/products/637642774-countersunk-bolt-and-nut-4-pack-m4-x-20mm-including
store_origin: CY
region: Cyprus
---

# Includes Nyloc nuts & flat washers for secure fit M4 x 20mm precision threading Grade 304 corrosion-resistant stainless steel Countersunk Bolt & Nut (4 Pack) M4 X 20mm (Including Head) A2 Stainless Steel Socket Allen Key Head Csk Bolts (Fully Threaded), Nyloc Nuts & Flat Washers (M4 x 20mm)

**Brand:** mmbshop
**Price:** € 12.73
**Availability:** ✅ In Stock

## Summary

> 🔩 Secure your build with style and strength — don’t settle for less!

## Quick Answers

- **What is this?** Countersunk Bolt & Nut (4 Pack) M4 X 20mm (Including Head) A2 Stainless Steel Socket Allen Key Head Csk Bolts (Fully Threaded), Nyloc Nuts & Flat Washers (M4 x 20mm) by mmbshop
- **How much does it cost?** € 12.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/637642774-countersunk-bolt-and-nut-4-pack-m4-x-20mm-including)

## Best For

- mmbshop enthusiasts

## Why This Product

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

## Key Features

- • **Flat Countersunk Head Design:** Sleek, flush finish for a professional, clean look
- • **Premium Grade 304 Stainless Steel:** Durability and corrosion resistance that stands the test of time
- • **Nyloc Nuts for Vibration Resistance:** Locking nuts that keep your assembly secure under stress
- • **Complete 4-Pack with Washers Included:** Everything you need for a hassle-free, reliable installation
- • **Precision M4 x 20mm Fully Threaded Bolts:** Engineered for exact fit and maximum grip in your projects

## Overview

This 4-pack of M4 x 20mm countersunk bolts features fully threaded Grade 304 stainless steel construction for superior corrosion resistance and durability. Each set includes Nyloc nuts and flat washers, ensuring a secure, vibration-resistant fit ideal for precision DIY, automotive, and professional applications.

## Description

Countersunk Bolt & Nut (4 Pack) M3,M4,M5,M6 or M8 x 10mm or 20mm A2 Stainless Steel Socket Allen Key Head Csk Bolts (Fully Threaded), Nyloc Nuts & Flat Washers

Review: Brilliant just what i needed - I had lost one bolt from the horn push reataing chrome ring on my Momo steering wheel, could not find any anywhere lo & behold found these perfect can now remount onto mt sports car
Review: Bolts - Done a good job

## Features

- Nyloc Din 985 Stainless Steel Nuts x 4
- Durable And Corrossion Resistant Grade 304 Stainless Steel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D4VXGPRT |
| Batteries Required? | No |
| Best Sellers Rank | 64,854 in DIY & Tools ( See Top 100 in DIY & Tools ) 505 in Nut & Bolt Sets |
| Customer Reviews | 4.5 4.5 out of 5 stars (66) |
| Cutting Diameter | 4 Millimetres |
| Date First Available | 22 May 2024 |
| Fastener type | Bolt |
| Finish | Corrosion Resistant |
| Finish type | Corrosion Resistant |
| Head Style | Flat |
| Head style | Flat |
| Item Weight | 30 g |
| Item diameter | 4 Millimetres |
| Manufacturer | DBA Hardware |
| Manufacturer reference | 001 |
| Measurement System | Metric |
| Number of items | 16 |
| Number of pieces | 4 |
| Part number | 001 |
| Shape | Round, Flat |
| Thread size | M4 |

## Product Details

- **Brand:** mmbshop
- **Colour:** Silver
- **Item dimensions L x W x H:** 20 x 8 x 8 millimetres
- **Material:** Stainless Steel
- **Size:** M4 x 20mm

## Images

![Countersunk Bolt & Nut (4 Pack) M4 X 20mm (Including Head) A2 Stainless Steel Socket Allen Key Head Csk Bolts (Fully Threaded), Nyloc Nuts & Flat Washers (M4 x 20mm) - Image 1](https://m.media-amazon.com/images/I/51Hr1ux3GYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant just what i needed
*by C***E on 14 May 2024*

I had lost one bolt from the horn push reataing chrome ring on my Momo steering wheel, could not find any anywhere lo & behold found these perfect can now remount onto mt sports car

### ⭐⭐⭐⭐ Bolts
*by C***N on 14 January 2026*

Done a good job

### ⭐⭐⭐⭐⭐ Frankenstein lost a bolt
*by G***7 on 20 March 2018*

As described...good quality

## Frequently Bought Together

- Countersunk Bolt & Nut (4 Pack) M4 X 20mm (Including Head) A2 Stainless Steel Socket Allen Key Head Csk Bolts (Fully Threaded), Nyloc Nuts & Flat Washers (M4 x 20mm)
- M6 (6mm x 8mm) Allen Socket Cap Head Screws – Bolts A2 Stainless Steel (Pack of 20)

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**Shop now:** [https://www.desertcart.com.cy/products/637642774-countersunk-bolt-and-nut-4-pack-m4-x-20mm-including](https://www.desertcart.com.cy/products/637642774-countersunk-bolt-and-nut-4-pack-m4-x-20mm-including)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-25*