---
product_id: 520371389
title: "720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black)"
brand: "qiwuhai"
price: "₨971"
currency: SCR
in_stock: true
reviews_count: 9
category: "Qiwuhai"
url: https://www.desertcart.sc/products/520371389-720-pcs-m3-hex-socket-cap-bolts-screws-assortment-kit
store_origin: SC
region: Seychelles
---

# Organized storage box included 720 pcs total variety Alloy steel, durable & corrosion-resistant 720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black)

**Brand:** qiwuhai
**Price:** ₨971
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your toolkit with the ultimate M3 hex socket kit — never scramble for screws again!

## Quick Answers

- **What is this?** 720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black) by qiwuhai
- **How much does it cost?** ₨971 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/520371389-720-pcs-m3-hex-socket-cap-bolts-screws-assortment-kit)

## Best For

- qiwuhai enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Industry Ready:** Perfect for 3D printers, electronics, fitness gear, lawn mowers, and more
- • **Neat & Portable Storage:** Compact plastic organizer with individual compartments keeps your kit ready and tidy
- • **Premium Alloy Steel Strength:** Wear-resistant, corrosion-proof bolts built to last through heavy-duty use
- • **Complete M3 Hex Socket Assortment:** 720 precision-engineered screws in 5 lengths for every project need
- • **Versatile Flat & Pan Head Options:** Flat heads for flush mounting, pan heads for secure fastening versatility

## Overview

This 720-piece M3 hex socket cap bolt and screw kit features black alloy steel construction for superior durability and corrosion resistance. It includes flat and pan head screws in five lengths (4mm to 12mm), all neatly organized in a portable storage box. Ideal for professionals and makers working with 3D printers, electronics, fitness equipment, and more, this kit ensures you have the right fastener on hand for any precision project.

## Description

Product Information - Product Name: Hex Bolt Screw Kit - Material: Alloy Steel - Color: Black - Size: M3x(4mm/6mm/8mm/10mm/12mm) - Quantity: 720 pieces Package Includes: Flat Head: M3*12 mm - 50 Pcs M3*10 mm - 60 Pcs M3*8 mm - 70 Pcs M3*6 mm - 80 Pcs M3*4 mm - 100 Pcs Round Head: M3*12 mm - 50 Pcs M3*10 mm - 60 Pcs M3*8 mm - 70 Pcs M3*6 mm - 80 Pcs M3*4 mm - 100 Pcs Features: - Our m3 hex screws are made of high quality alloy steel, which is strong and durable for long-term use. - The hex bolt kit is M3 standard model, uniform spacing and force during use. - We offer you a plastic storage box, which is neat and clean, not easy to mix up, and reduces damage. - Widely used in 3D printers, computers, electronic devices, fitness equipment, lawn mowers and more. Warm Tips - If you have any questions about how to use the hex head machine screws, please feel free to contact us. We will solve your questions as soon as possible.

Review: They work awesome. - Used a dozen or so of the seem to be good quality.
Review: Good value - Great value for the money.

## Features

- Premium Material: The hex head bolts screws are made of excellent Alloy Steel material with good mechanical strength, which is wear-resistant, corrosion-resistant, good toughness and durable for long time use.
- Easy to Use: Hex socket head screws have well-made threads, clean and precise, guarantee not to deform during use, evenly stressed, and provide good fastening. Flat Head Hex Screws, the head can be better inserted into the mounting surface to ensure a smooth surface and improved force range.
- Easy to Store: All black hex socket pan and flat head screws are packed in a plastic storage box, all nut screw fasteners are in their individual compartments, easy to store and carry.
- Wide Applications: M3 thread button head screws can be widely used in 3D printers, computers, electronic equipment, fitness equipment, lawn mowers, etc., ideal for office equipment, communication equipment, ship conference and other industries.
- Package Includes: You will receive a total of 720 M3 hex socket screws, in the size of M3x(4mm/6mm/8mm/10mm/12mm), flat head and round pan head. Deep and clear hex heads can make your work easier.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BMQGV4SW |
| Best Sellers Rank | #4,882 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #29 in Socket Head Screws |
| Brand | qiwuhai |
| Color | Black |
| Compatible groove diameter | 3 Millimeters |
| Date First Available | November 17, 2022 |
| Exterior Finish | Black Oxide |
| Fastener Size | M3 |
| Fastener Type | button |
| Head Style | Flat |
| Head Type | Flat |
| Item Diameter | 3 Millimeters |
| Item Weight | 12.6 ounces |
| Item model number | 720 |
| Manufacturer | qiwuhai |
| Material | Alloy Steel |
| Metal Type | Alloy Steel |
| Number of Pieces | 720 |
| Point Style | Flat Point, Round Point |
| Set Name | Assortment Kit |
| Set Screw Thread Type | metric |
| Size | One Size |
| Thread Class | standard |
| Thread Coverage | Fully Threaded |
| Thread Size | M3x(4mm/6mm/8mm/10mm/12mm) |
| Thread Style | Right Hand M3 |
| Thread Type | Metric |

## Product Details

- **Exterior Finish:** Black Oxide
- **Head Style:** Flat
- **Item dimensions L x W x H:** 5.12 x 2.56 x 0.91 inches
- **Material:** Alloy Steel
- **Thread Size:** M3x(4mm/6mm/8mm/10mm/12mm)

## Images

![720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black) - Image 1](https://m.media-amazon.com/images/I/71knLF9M8RL.jpg)
![720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black) - Image 2](https://m.media-amazon.com/images/I/714YV0RaqeL.jpg)
![720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black) - Image 3](https://m.media-amazon.com/images/I/61+Sd+Epb8L.jpg)
![720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black) - Image 4](https://m.media-amazon.com/images/I/61hC-ZtiJhL.jpg)
![720 Pcs M3 Hex Socket Cap Bolts Screws Assortment Kit, Pan & Flat Head Hex Button Head Screws Assorted, Black Alloy Steel, M3x(4mm/6mm/8mm/10mm/12mm) (Black) - Image 5](https://m.media-amazon.com/images/I/91Mrss4jhdL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ They work awesome.
*by T***. on February 8, 2026*

Used a dozen or so of the seem to be good quality.

### ⭐⭐⭐⭐⭐ Good value
*by A***R on January 25, 2026*

Great value for the money.

### ⭐⭐⭐⭐⭐ Incredibly handy screws to have around for all kinds of jobs! I'm ordering another set.
*by G***N on June 16, 2025*

I'm a retired engineer who spends his free time with woodworking, 3D Printing and Computer and Electronics Home Automation stuff. The beauty of these screws is that they can self thread and drive into many different kinds of material without the need to pre-drill a pilot hole. They have very sharp points and a good tap on the 2.5 mm hex driver with the palm of your hand is all it takes to make them start screwing into most surfaces since their design pulls the screw into the material with every turn. Wood, plastic, light sheet metal and aluminum are all potential fastening surfaces for these screws. Of course if you have the room and the time you can still pre-drill a pilot hole that makes them even easier to use but how often does that happen? I find my self using many of the shorter lengths in the 6mm to 14mm range the most and will probably re-order the same assortment soon so as to not run out of those handiest lengths.

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-16*