---
product_id: 419346375
title: "20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black"
brand: "oneyijun"
price: "KD 3.41"
currency: KWD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.kw/products/419346375-20-pcs-m3-5-x-12mm-self-tapping-wood-screws
store_origin: KW
region: Kuwait
---

# Durable black carbon steel M3.5mm precision threading 12mm optimal thread length 20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black

**Brand:** oneyijun
**Price:** KD 3.41
**Availability:** ✅ In Stock

## Summary

> 🛠️ Screw it right, screw it tight — the black steel power move!

## Quick Answers

- **What is this?** 20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black by oneyijun
- **How much does it cost?** KD 3.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/419346375-20-pcs-m3-5-x-12mm-self-tapping-wood-screws)

## Best For

- oneyijun enthusiasts

## Why This Product

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

## Key Features

- • **Optimal Thread Length:** 12mm length strikes the perfect balance for strong hold without over-penetration.
- • **Versatile DIY Essential:** Ideal for furniture, cabinets, and all your woodworking projects—be the go-to pro in your circle.
- • **Robust Carbon Steel Build:** Crafted from high-quality carbon steel for superior strength and long-lasting durability.
- • **Precision Engineered Threads:** M3.5mm diameter with 0.6mm pitch ensures a secure, tight fit for flawless woodworking.
- • **Sleek Mushroom Round Flanged Head:** Designed for a clean, professional finish that blends seamlessly with furniture and cabinetry.

## Overview

Oneyijun’s 20-piece set of M3.5 x 12mm self-tapping wood screws features precision carbon steel construction with a sleek black mushroom round flanged head, engineered for superior holding power in woodworking and furniture assembly. Perfectly sized for professional-grade DIY projects and cabinetry, these screws combine durability with a clean finish to elevate your craftsmanship.

## Description

20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black

## Features

- Material: Carbon Steel.
- Head Diameter: 8mm / 0.31 inch.
- Pitch: 0.6mm / 0.023 inch.
- Thread Diameter: 3.5mm / 0.13 inch ，Thread Length: 12mm / 0.47 inch.
- Functional house tool:flat head screws with good holding power fit for many woodworking and DIY jobs,fasteners for the furniture and cabinet industry.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Oneyijun |
| Part number | OneyiBK4-M3.5x12 |
| Item Weight | 32 g |
| Package Dimensions | 17.4 x 16.69 x 2.11 cm; 32 g |
| Item model number | OneyiBK4-M3.5x12 |
| Size | M3.5x12mm(20Pcs) |
| Colour | Black |
| Material | Carbon Steel |
| Number of Pieces | 20 |
| Head Style | Round |
| Measurement System | Metric, Imperial |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Carbon Steel
- **Drive system:** Slotted
- **Head style:** Round
- **Exterior finish:** Alloy Steel
- **Thread size:** M 3 5

## Images

![20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black - Image 1](https://m.media-amazon.com/images/I/41kN-oN3duL.jpg)
![20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black - Image 2](https://m.media-amazon.com/images/I/51F4p5-8HJL.jpg)
![20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black - Image 3](https://m.media-amazon.com/images/I/41YmnfkZM9S.jpg)
![20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black - Image 4](https://m.media-amazon.com/images/I/51zZHCZ8uIS.jpg)
![20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black - Image 5](https://m.media-amazon.com/images/I/51f1bVtVwtS.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Decent screws, but have rounded heads
*by K***V on 25 September 2024*

Good wood screws, but have domed heads so do not screw flat / flush if that's what you're after.

### ⭐⭐⭐ Okay for the price, but head smaller than spec.
*by M***A on 6 February 2025*

Not great quality, a bit soft for hard wood so a little pilot helps rather than relying on self tap.Plus the measurements aren't quite right the head is smaller than 8mm as stated, I'd say 6.5mm is.Still good value if you can use them.

### ⭐⭐⭐⭐⭐ Perfect.
*by A***D on 16 November 2024*

A size and head type that we're missing from my screw selection.

## Frequently Bought Together

- Oneyijun 20 Pcs M3.5 x 12mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black
- Oneyijun 20 Pcs M3 x 8mm Self Tapping Wood Screws Carbon Steel Mushroom Round Flanged Head Fasteners Drilling Screw Black

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-17*