---
product_id: 461932160
title: "Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black"
brand: "xxinxrong"
price: "164 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Xxin Xrong"
url: https://www.desertcart.ro/products/461932160-cross-head-self-tapping-screw-with-washer-300-pieces-m3
store_origin: RO
region: Romania
---

# Integrated washer & head High-hardness carbon steel 300 pcs versatile kit Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black

**Brand:** xxinxrong
**Price:** 164 Lei
**Availability:** ✅ In Stock

## Summary

> 🔩 Screw it right, screw it tight — the ultimate fastening upgrade!

## Quick Answers

- **What is this?** Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black by xxinxrong
- **How much does it cost?** 164 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/461932160-cross-head-self-tapping-screw-with-washer-300-pieces-m3)

## Best For

- xxinxrong enthusiasts

## Why This Product

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

## Key Features

- • **Integrated Washer Design:** Prevents loosening and ensures secure fastening with every turn
- • **Cross-Slot Precision Drive:** Effortless, slip-resistant tightening for professional-grade results
- • **Organized & Portable Storage:** Compact box with compartments and hanging hole keeps your toolkit sleek and ready
- • **All-in-One 300-Piece Power Pack:** Comprehensive range from M3 to M4 sizes for every project need
- • **Premium Carbon Steel Durability:** Engineered for corrosion resistance and long-lasting strength

## Overview

This 300-piece set of black cross head self-tapping screws features high-quality carbon steel construction for superior hardness and corrosion resistance. Designed with an integrated washer and cross-slot head, these screws deliver secure, slip-free fastening across wood, metal, plastic, and rubber. Packaged in a convenient compartmentalized storage box, this kit is a must-have for home, office, and professional maintenance projects.

## Description

Product Information: - Product Name: Cross Head Self Tapping Screws with Washers - Material: Carbon Steel - Color: Black - Quantity: 300 Pcs Package Includes: 50 Pcs - M3x8mm 45 Pcs - M3x12mm 35 Pcs - M3x16mm 30 Pcs - M3x20mm 20 Pcs - M3x25mm 35 Pcs - M4x10mm 30 Pcs - M4x12mm 20 Pcs - M4x16mm 20 Pcs - M4x20mm 15 Pcs - M4x25mm Features: - The self tapping screws are made of high-quality carbon steel material, which are sturdy, and durable for long time use. - Driven by a cross groove, with uniform force, easy to lock, not easy to slip, and convenient and quick to use. - All self drilling pan head screws are put in a storage box, which are easy to use, find, and carry. - The plasterboard screws can connect metal hardware to the wood well, the fully threaded rods provide good retention in the wood. - Widely used in various industries such as manufacturing, construction, engineering, and assembly. Warm Tips: - If you have any questions when you use our drywall screws, please contact us, we will definitely provide you with satisfactory after-sales service.

Review: Screws - As described, good quality.
Review: Adequate, considering the price - The quality was as expected, and reflected in the price. Not the best, but adequate for the job.

## Features

- Top Materials: Self-drilling screws are made of high-quality carbon steel with high hardness, corrosion resistance, rust resistance, sturdy and durable, and can be used for a long time.
- Practical Design: Our black self-tapping screws have a standard cross-slot design, integrated molding of screw head and washer, easy to lock, not easy to slide, avoid loosening of screws, strengthening screws and contact objects. Cross head screws provide more efficient drilling and tightening.
- Storage Box: 300 pieces of carbon steel screw set packed in a convenient plastic storage box with compartment for easy storage and loss. There is a hole in the box that you can hang. It is a must-have tool for any utility toolbox.
- Widely used: can be used to fix wood, soft metal, plastic, rubber, etc. Widely used for daily maintenance and fixing of homes, offices, factories and stores. A standing stock of tools for home maintenance, repairs, woodworking and hobbyists.
- Package Includes: You will receive 50 pcs m3x8mm; 45 pcs m3x12mm; 35 pcs m3x16mm; 30 pcs m3x20mm; 20 pcs m3x25mm; 35 pcs m4x10mm; 30 pcs m4x12mm; 20 pcs m4x16mm; 20 pcs m4x20mm; 15 pcs m4x25mm, a total of 300 pcs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2KQZ2T1 |
| Batteries included? | No |
| Best Sellers Rank | 25,111 in DIY & Tools ( See Top 100 in DIY & Tools ) 46 in Screw & Bolt Assortment Sets |
| Colour | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (264) |
| Cutting Diameter | 3 Millimetres |
| Date First Available | 27 May 2022 |
| Finish | Black |
| Head Style | Pan, Round |
| Item Weight | 290 g |
| Item diameter | 3 Millimetres |
| Manufacturer | JM |
| Manufacturer reference | 1 |
| Material | Carbon Steel, Rubber |
| Number of Pieces | 300 |
| Part number | 1 |
| Shape | rod |

## Product Details

- **Exterior finish:** Alloy Steel
- **Head style:** Pan, Round
- **Item dimensions L x W x H:** 12.5 x 6 x 2.3 centimetres
- **Material:** Carbon Steel, Rubber
- **Thread size:** M 3

## Images

![Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black - Image 1](https://m.media-amazon.com/images/I/51BSvfciChL.jpg)
![Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black - Image 2](https://m.media-amazon.com/images/I/51MbCbYzpwL.jpg)
![Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black - Image 3](https://m.media-amazon.com/images/I/51SeKYtBYzL.jpg)
![Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black - Image 4](https://m.media-amazon.com/images/I/51W6jxAaglL.jpg)
![Cross head self-tapping screw with washer | 300 pieces M3/ M4, disc head self-drilling wood screw classification kit, black round countersunk mechanicalfastener,black - Image 5](https://m.media-amazon.com/images/I/51eeTYzi2UL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Screws
*by A***N on 15 July 2025*

As described, good quality.

### ⭐⭐⭐⭐ Adequate, considering the price
*by K***N on 5 August 2025*

The quality was as expected, and reflected in the price. Not the best, but adequate for the job.

### ⭐⭐⭐⭐⭐ Super
*by A***S on 28 July 2025*

Super

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-12*