---
product_id: 589041867
title: "uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs"
brand: "uxcell"
price: "C$3775"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/589041867-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head
store_origin: NI
region: Nicaragua
---

# M3 x 40mm - precise threading length Black finish - sleek & corrosion resistant 12.9 Grade Alloy Steel - ultra durable uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs

**Brand:** uxcell
**Price:** C$3775
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build game with bolts that mean business!

## Quick Answers

- **What is this?** uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs by uxcell
- **How much does it cost?** C$3775 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/589041867-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head)

## 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

- • **Sleek Black Finish:** Matte black coating not only resists corrosion but adds a modern, professional aesthetic to your projects.
- • **Bulk Pack Advantage:** 50 pieces per pack (+/-2%) means you’re always ready for any job—no last-minute runs to the hardware store.
- • **Precision Engineering:** Exact M3 x 40mm dimensions with 0.5mm thread pitch ensure flawless fit and secure fastening every time.
- • **Industrial-Grade Strength:** Crafted from premium 12.9 grade alloy steel for unmatched durability and load-bearing capacity.
- • **Fully Threaded for Maximum Grip:** Complete thread coverage guarantees superior holding power and stability in all your assemblies.

## Overview

The uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws come in a bulk pack of 50, made from high-strength 12.9 grade alloy steel with a sleek black finish. Designed for precision and durability, these fully threaded machine screws offer reliable fastening with a professional look, perfect for engineers, DIY pros, and managers who demand quality and efficiency.

## Description

Alloy Steel material . Socket Head . Fastener Type: Machine Screw

## 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 |
|---------------|-------|
| 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 |
| Point Style | Round Point |
| Metal Type | Alloy Steel |
| Brand | uxcell |
| Colour | As shown in image |
| Head Type | Socket |
| Item Weight | 0.01 Ounces |
| Thread Coverage | Fully Threaded |
| Fastener Type | Machine Screw |
| Set Screw Thread Type | M |
| Thread Style | Right Hand |
| Thread Class | 2A |
| Fastener Size | M3 x 40mm |
| Size | As shown in image |
| Number of Pieces | 50 |
| Manufacturer | Generic |
| Country of Origin | USA |
| Item model number | a15030300ux0019 |
| ASIN | B00W97R5KU |

## 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

![uxcell 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.ni/products/589041867-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head](https://www.desertcart.ni/products/589041867-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-13*