---
product_id: 655722630
title: "600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set"
brand: "hapric"
price: "161 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Hapric"
url: https://www.desertcart.ro/products/655722630-600-pcs-m3-screws-assortment-kit-m3x-6-8-10
store_origin: RO
region: Romania
---

# 7 precision lengths (6-30mm) 600 pcs total kit 12.9 grade alloy steel 600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set

**Brand:** hapric
**Price:** 161 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your toolkit with the ultimate M3 screw set — never scramble for the right size again!

## Quick Answers

- **What is this?** 600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set by hapric
- **How much does it cost?** 161 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/655722630-600-pcs-m3-screws-assortment-kit-m3x-6-8-10)

## Best For

- hapric enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Application:** Ideal for furniture, electronics, automotive, and mechanical repairs — impress clients with professional-grade hardware
- • **Complete Precision Kit:** 600-piece M3 assortment with screws, nuts & washers for every project size
- • **Perfect Fit Every Time:** Seven standardized metric lengths with <0.01mm tolerance for seamless assembly
- • **Organized & Ready to Go:** Labeled, compartmentalized case designed for quick access and effortless portability
- • **Industrial-Grade Strength:** Durable 12.9 alloy steel with black zinc plating for corrosion resistance and long-term reliability

## Overview

This 600-piece M3 screw kit features high-strength 12.9 alloy steel screws, nuts, and washers in seven precise lengths (6-30mm), all black zinc plated for durability and corrosion resistance. Packaged in a smart, labeled organizer, it’s engineered for professionals and DIYers who demand reliability and efficiency in furniture assembly, electronics, and mechanical repairs.

## Description

600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set: desertcart.com: Industrial & Scientific

Review: M3 Screws Assortment Kit - This assortment includes a good range of M3 screw lengths, which makes it handy for electronics, 3D printer parts, small enclosures, and general hardware projects. The selection covers common sizes, and having everything in one case saves time versus hunting individual screws. The screws appear well-machined with clean threads, and they threaded smoothly into nuts and tapped holes during use. I didn’t experience stripping or binding when installing by hand. The case keeps sizes separated and clearly labeled, which helps when working quickly. Material feels solid for typical M3 applications. I didn’t perform hardness testing, but for normal workshop and repair use, they’ve held up fine so far. Overall, a useful assortment to keep on hand if you work with small hardware regularly.
Review: Perfect machine screws, great price - These M3 screw kits have been working out great for me in my daily projects. The black galvanizing technology makes sure they look clean and professional, which is always a plus when you're trying to impress clients or colleagues (or just want your work to look neat). I especially love the fact that there are seven different lengths included - it means I don't have to worry about running out of the right size in the middle of a project. The set also comes with plenty of washers and nuts, so you won't run out while working on something important (I hate when that happens). The box itself is really well-organized too, which makes it easy to find what you need quickly. It even has internal and external labels marking the corresponding screw size and quantity - talk about attention to detail! I haven't had any issues with these screws loosening up either, so they seem to be pretty reliable as well. Overall, I'm really happy with this purchase (I got them on sale at a local hardware store for like $15 or something).

## Features

- Easy to Use: M3 screw kit can be used for daily furniture installation and mechanical repair, etc. When using, you can use tweezers to pick up the screws, put them into the hardware that needs to be connected, then tighten them with the M3 wrench included in the package, and then install nuts and flat washers to prevent loosening. If you need to disassemble it, just unscrew it in the opposite direction, which is very convenient and simple.
- Black Galvanizing Technology : M3 screws kit is made of durable 12.9 alloy steel with black galvanizing technology, the surface does not contain organic oil and has no odor, its smooth without burrs, has a tight pitch, and has a certain hardness, making it suitable for long-term use under all-weather conditions.
- Sufficient quantity: 600 pieces M3 screw, nuts and flat washers set, 200 screws, 200 nuts, 200 flat washers, washers help strengthen the screws and prevent loosening. Suitable for daily home and work maintenance use.
- Standardized Metric Sizes: M3 socket head bolt and nut sets come in 7 different lengths most commonly used in routine installation repairs. Complying with the standard metric system, the average error is less than 0.01mm.
- Widely Applications: Our metric bolt and nut sets come in thick fixed divider boxes with internal and external labels marking the corresponding screw size and quantity for easy storage and access; the elegant box is convenient for carrying in your daily tool bag, or Make a gift for professionals and amateurs who regularly repair furniture, cars, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D3X5CT2J |
| Best Sellers Rank | #1,329 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Nut & Bolt Assortment Sets |
| Brand | Hapric |
| Color | black |
| Compatible Groove Diameter | 3 Millimeters |
| Customer Reviews | 4.7 out of 5 stars 583 Reviews |
| Fastener Type | Bolt |
| Finish Types | Black Zinc Plated |
| Grade Rating | industrial |
| Item Diameter | 3 Millimeters |
| Item Dimensions | 6.29 x 5.9 x 1.57 inches |
| Item Shape | Cylindrical |
| Item Weight | 300 Grams |
| Item dimensions L x W x H | 6.29 x 5.9 x 1.57 inches |
| Manufacturer | Hapric |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Number of Pieces | 600 |
| Screw Head Style | Hex Socket Head |
| Size | M3x6mm-30mm 600Pcs |
| Size Name | M3x6mm-30mm 600Pcs |
| Thread Size | M3x 6/8/10/12/16/20/25/30mm |

## Product Details

- **Size:** M3x6mm-30mm 600Pcs
- **Color:** black
- **Material:** Alloy Steel
- **Brand:** Hapric
- **Item dimensions L x W x H:** 6.29 x 5.9 x 1.57 inches

## Images

![600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set - Image 1](https://m.media-amazon.com/images/I/81Unj8gyicL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ M3 Screws Assortment Kit
*by C***Y on February 2, 2026*

This assortment includes a good range of M3 screw lengths, which makes it handy for electronics, 3D printer parts, small enclosures, and general hardware projects. The selection covers common sizes, and having everything in one case saves time versus hunting individual screws. The screws appear well-machined with clean threads, and they threaded smoothly into nuts and tapped holes during use. I didn’t experience stripping or binding when installing by hand. The case keeps sizes separated and clearly labeled, which helps when working quickly. Material feels solid for typical M3 applications. I didn’t perform hardness testing, but for normal workshop and repair use, they’ve held up fine so far. Overall, a useful assortment to keep on hand if you work with small hardware regularly.

### ⭐⭐⭐⭐⭐ Perfect machine screws, great price
*by R***S on October 7, 2025*

These M3 screw kits have been working out great for me in my daily projects. The black galvanizing technology makes sure they look clean and professional, which is always a plus when you're trying to impress clients or colleagues (or just want your work to look neat). I especially love the fact that there are seven different lengths included - it means I don't have to worry about running out of the right size in the middle of a project. The set also comes with plenty of washers and nuts, so you won't run out while working on something important (I hate when that happens). The box itself is really well-organized too, which makes it easy to find what you need quickly. It even has internal and external labels marking the corresponding screw size and quantity - talk about attention to detail! I haven't had any issues with these screws loosening up either, so they seem to be pretty reliable as well. Overall, I'm really happy with this purchase (I got them on sale at a local hardware store for like $15 or something).

### ⭐⭐⭐⭐⭐ Great selection - perfect M2 - sized
*by P***D on September 9, 2025*

First thing is first - These are M2 screws. They're tiny! These made an excellent addition to my 3d Printing exploits. A number of items have small parts that remain stationary. I found that rather than using epoxy or CA glue, simply pressing in a brass threaded insert and maybe drilling a hole, this provides a sturdier hold for smaller pieces. It also is nice for pieces that need to clamp onto something like a handlebar of a bike or something. The assortment is great and the screws are high quality. They don't easily cross-thread, and they should hold up to oxidation over time. They took some abuse from my screwdriver without the black chipping away.

## Frequently Bought Together

- 600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set
- HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces)
- Kadrick Small Metric Screws Suitable for 3D Printer DIY, 400 Pcs M3 Screw and Nut Assortment Hex Socket Head Cap, 12.9 Grade Alloy Steel,Black Zinc Plated

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-24*