---
product_id: 354622585
title: "M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs"
brand: "uxcell"
price: "945 DH"
currency: MAD
in_stock: true
url: https://www.desertcart.ma/products/354622585-m3-x-40mm-alloy-steel-hex-bolt-socket-head-cap
store_origin: MA
region: Morocco
---

# M3 x 40mm - precision sizing Black finish - sleek, professional look 12.9 Grade Alloy Steel - ultra durable M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs

**Brand:** uxcell
**Price:** 945 DH
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build game with precision and power!

## Quick Answers

- **What is this?** M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs by uxcell
- **How much does it cost?** 945 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/354622585-m3-x-40mm-alloy-steel-hex-bolt-socket-head-cap)

## Best For

- uxcell enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Pack Advantage:** 50 pieces per pack means you’re always ready for any job—no last-minute runs to the hardware store.
- • **Precision Engineering:** Exact M3 x 40mm sizing with 0.5mm thread pitch ensures seamless fit and superior fastening performance.
- • **Sleek Black Aesthetic:** Matte black socket head design adds a modern, professional edge to your hardware setup.
- • **Versatile Socket Head:** Hex socket head allows for high torque application with minimal wear, perfect for precision assembly.
- • **Industrial-Grade Strength:** Crafted from 12.9 grade alloy steel for unmatched durability and reliability in every project.

## Overview

The uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws come in a bulk pack of 50, made from premium 12.9 grade alloy steel for exceptional strength. Featuring a precise M3 thread diameter and 40mm length with a sleek black finish, these socket head screws deliver professional-grade fastening for demanding mechanical and DIY projects.

## Description

M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs

## Features

- Product Name : Socket Head Cup Screws;Material : 12.9 Grade Alloy Steel;Color : Black
- Screw Standard : M3 x 40mm;Thread Dia. : 3mm
- Thread Pitch : 0.5mm;Thread Length : 40mm / 1.6"
- Head Diameter : 5.5mm;Head Height : 3mm
- Weight : 100g;Package Content : 50(+/-2%) xSocket Head Cup Screws

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | uxcell |
| Part number | a15030300ux0019 |
| Item Weight | 0.28 g |
| Item model number | a15030300ux0019 |
| Size | 3 inches |
| Color | Black |
| Finish | Uncoated |
| Material | Alloy Steel |
| Shape | Cylindrical with Hexagonal Head |
| Item Package Quantity | 1 |
| Number Of Pieces | 50 |
| Head Style | Socket |
| Cutting Diameter | 3 Millimeters |
| Measurement System | Imperial |
| Batteries Included? | No |
| Batteries Required? | No |
| Item diameter | 3 Millimeters |

## Product Details

- **Material:** Alloy Steel
- **Head style:** Socket
- **Item dimensions L x W x H:** 5 x 4 x 2 centimeters
- **Exterior finish:** Alloy Steel
- **Thread size:** M3

## Images

![M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs - Image 1](https://m.media-amazon.com/images/I/61qQ+3QCVyL.jpg)

## Frequently Bought Together

- uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs
- 100pcs M3 x 8mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish
- uxcell a16033100ux0563 M3 Carbon Steel Grade 8 Hexagon Hex Nut Black Carbon Steel (Pack of 100)

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**Shop now:** [https://www.desertcart.ma/products/354622585-m3-x-40mm-alloy-steel-hex-bolt-socket-head-cap](https://www.desertcart.ma/products/354622585-m3-x-40mm-alloy-steel-hex-bolt-socket-head-cap)

---

*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-01*