---
product_id: 15218159
title: "uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs"
brand: "uxcell"
price: "12119 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/15218159-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head
store_origin: HU
region: Hungary
---

# M3 x 40mm - Precision Thread Length Black Oxidation 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:** 12119 Ft
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build 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?** 12119 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/15218159-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:** Black oxidation coating not only looks professional but also resists rust and wear.
- • **Bulk Pack Advantage:** 50 pieces per pack to keep your projects moving without interruption or delays.
- • **Precision Engineering:** M3 x 40mm fully threaded design ensures perfect fit and reliable fastening every time.
- • **Hex Socket Head Design:** Enables high torque application with minimal cam-out, perfect for precision assembly.
- • **Industrial-Grade Strength:** Crafted from 12.9 grade alloy steel for maximum durability and load-bearing capacity.

## 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 with a corrosion-resistant black oxidation finish. Designed for precision and durability, these fully threaded M3 bolts feature a hex socket head for secure, high-torque fastening in professional and DIY projects alike.

## Description

Full description not available

## 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 | Hex |
| Exterior Finish | Alloy Steel |
| Thread Size | M3 |
| Point Style | Round Point |
| Metal Type | Alloy Steel |
| Brand | uxcell |
| Color | Black |
| Head Type | Socket |
| Item Weight | 0.01 Ounces |
| Thread Type | Metric |
| Thread Coverage | Fully Threaded |
| Fastener Type | Hexagon Bolt |
| Set Screw Thread Type | Metric |
| Thread Style | Right Hand |
| Fastener Size | M3 |
| Size | 3 inches |
| Item Diameter | 3 Millimeters |
| Compatible groove diameter | 3 Millimeters |
| Number of Pieces | 50 |
| Set Name | 50 |
| Manufacturer | uxcell |
| Part Number | a15030300ux0019 |
| Item Weight | 0.01 ounces |
| Item model number | a15030300ux0019 |
| Finish | Black Oxidation |
| Shape | Cylindrical With Hexagonal Head |
| Item Package Quantity | 1 |
| Cutting Diameter | 3 Millimeters |
| Measurement System | Imperial, Metric |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Alloy Steel
- **Head Style:** Hex
- **Item dimensions L x W x H:** 1.97 x 1.57 x 0.79 inches
- **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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Quality
*by J***N on February 8, 2025*

⭐️⭐️⭐️⭐️⭐️ Seller had Super Fast Shipping Very Nice item in Very Good Condition with a High Quality Appearance Very Good Value for the Price ⭐️⭐️⭐️⭐️⭐️

### ⭐⭐⭐⭐⭐ So.... i bought them for a out of the ordinary "project"
*by C***S on September 6, 2018*

i have a Walther G22 in which parts for it just dont exist, and i dont feel like messing with sending it off. so i got some bad ammo which ended up blowing the charging handle off the rifle and ended up not repairable the rifle itself was fine. i bought these along with a set of nuts to go with them and did some rigging to "make" a new charging handle (in which now i have 50 replacements for). so far after around 500 rounds of .22LR ammo the first is still living good. so if these can take the forces of a rifle bolt moving around i'd come to think these would be good in the least for other maybe more relevant uses.

### ⭐⭐⭐⭐⭐ They're bolts
*by A***O on December 1, 2022*

They're still holding the parts I bought them for together.

## Frequently Bought Together

- uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 50 Pcs
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**Shop now:** [https://www.desertcart.hu/products/15218159-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head](https://www.desertcart.hu/products/15218159-uxcell-m3-x-40mm-alloy-steel-hex-bolt-socket-head)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-08*