---
product_id: 409677120
title: "1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces"
brand: "sprite science"
price: "KSh5471"
currency: KES
in_stock: true
reviews_count: 5
category: "Sprite Science"
url: https://www.desertcart.co.ke/products/409677120-1-4-20-hex-drive-threaded-inserts-for-wood-40
store_origin: KE
region: Kenya
---

# Optimized drill sizes for soft & hard wood 1/4-20 Unified National Coarse thread Includes 6mm hex wrench for easy install 1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces

**Brand:** sprite science
**Price:** KSh5471
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw in confidence, build with precision.

## Quick Answers

- **What is this?** 1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces by sprite science
- **How much does it cost?** KSh5471 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/409677120-1-4-20-hex-drive-threaded-inserts-for-wood-40)

## Best For

- sprite science enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Pack Advantage:** 40-piece set keeps you stocked for multiple projects—never run out mid-build.
- • **Precision Thread Fit:** Engineered 1/4-20 UNC threads ensure rock-solid furniture connections every time.
- • **All-in-One Installation:** Comes with a 6mm hex wrench—no extra tools needed to get started.
- • **Versatile Wood Compatibility:** Tailored drill hole recommendations for both softwoods and hardwoods like oak and maple.
- • **Durable Zinc-Plated Carbon Steel:** Corrosion-resistant finish guarantees longevity in your woodworking projects.

## Overview

This 40-piece set of 1/4-20 hex drive threaded inserts for wood features zinc-plated carbon steel construction with a 15mm length and precise thread dimensions. Designed for easy installation with the included 6mm allen wrench, these inserts provide durable, corrosion-resistant fastening solutions optimized for both soft and hard woods by following recommended drill hole sizes.

## Description

1/4"-20 threaded insert wood insert furniture screw in nut connector screws Thread Type: 1/4"-20 Total Length: 15mm Insert head diameter: 11.7mm Insert Threads Diameter: 10.4mm Body Diameter: 0.315" / 8mm.Material: carbon steel, zinc plated ▲▲▲ -Suggested Drilling Hole for Soft Wood: 8.5mm, 9mm, 3/8". ▲▲▲-Suggested Drilling Hole for Hard Wood: 3/8", 10mm. ★★★NOTE: SIZE of drilling hole depends on the Hardness of the Material★★★ ★★★Please drill a proper hole, test to check if inserts fit appropriately. ★★★ ★ In Softer wood, the outside threads cut easily into the wood, simply drill a proper hole size (8.5mm, 9mm, 9.5mm, 3/8" drill bit) for the body of the insert, then screw insert into the place. ★★★ ★ In very Harder wood such as white oak or maple, drill a hole size (3/8", 9.5mm, 10mm drill bit) that close to the outside threads diameter. If the drilled hole is too small for the threads, screwing it in MAY split the wood or insert. Package comes with 40pcs wood insert nut + 1pc 6mm allen wrench.

Review: TIP TOP - TOP Compatible avec les vis à dégagement rapide
Review: 結構しっかりしています。 - ウッドデッキ材のハードウッド、イペに10mmのドリルで深さ15mm、C2くらいで面取りをしてから打ちました。しっかりしています。 六角レンチも付いていますが、少し短く、お手持ちのものを使うことをオススメします。（普通に使えますが） かなり硬い木でもしっかりと固定でき、ちゃんと使えました。 なくなったらリピします。

## Features

- 1/4-20 threaded insert x 15mm length, 6mm allen wrench included, best 1/4"-20 threaded insert wood insert furniture screw in nut connector screws.
- Insert head ⌀: 0.461" / 11.7mm, body ⌀: 0.315" / 8mm, threads ⌀: 0.410" / 10.4mm.
- Threaded inserts are easy to install, simply drill the right size hole and Install with hex key provided.
- In Softer wood, the outside threads cut easily into the wood, simply drill a Appropriately Sized Hole (8.5mm, 9mm, 9.5mm, 3/8" drill bit) for the body of the insert, then screw insert into the place.
- In very Harder wood such as white oak or maple, drill a hole size (3/8", 9.5mm, 10mm drill bit) that close to the outside threads diameter, then screw insert into the place. If the drilled hole is too small for the threads, screwing it in MAY split the wood or insert.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QGMCNS8 |
| Best Sellers Rank | #240,310 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #150 in Nut Inserts |
| Brand | Sprite Science |
| Color | White |
| Colour | White |
| Compatible Groove Diameter | 0.41 Inches |
| Customer Reviews | 4.6 out of 5 stars 1,072 Reviews |
| Drive Style | External Hex |
| Exterior Finish | Zinc |
| Exterior finish | Zinc |
| Fastener Type | Hex, Insert |
| Fastener type | Hex , Insert |
| Finish Types | Zinc plated carbon steel |
| Grade Rating | industrial |
| Inside Thread Size | 0.410 INCH / 10.4MM |
| Item Diameter | 0.41 Inches |
| Item Weight | 0.2 Kilograms |
| Manufacturer | Sprite Science |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Metal Type | Carbon Steel |
| Metal type | Carbon Steel |
| Number of Pieces | 40 |
| Screw Head Style | Hex |
| Size Name | 1/4-20 x 15mm |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse (Unc) |
| Thread size | 1/4"-20 |

## Product Details

- **Colour:** White
- **Exterior finish:** Zinc
- **Fastener type:** Hex, Insert
- **Material:** Carbon Steel
- **Thread size:** 1/4"-20

## Images

![1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces - Image 1](https://m.media-amazon.com/images/I/714tjHdpB+L.jpg)
![1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces - Image 2](https://m.media-amazon.com/images/I/41e9hvyb91L.jpg)
![1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces - Image 3](https://m.media-amazon.com/images/I/71zNrcOI8BL.jpg)
![1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces - Image 4](https://m.media-amazon.com/images/I/61C4elNQjuL.jpg)
![1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces - Image 5](https://m.media-amazon.com/images/I/61b9SeuRLVL.jpg)

## Questions & Answers

**Q: are these available in metric sizes?**
A: Sorry that metric M6 is out of stock now. This is the standard 1/4-20 threads insert nuts, work with 1/4-20 bolts. M6 and 1/4-20 have the same dia and length, except the threads are different.

**Q: Will these work well in plywood (without using epoxy)?  Would be using these as 1/4" lag screw replacements on desk legs.**
A: Yes they would work fine. 8 hold in my 100 pound sub while its playing. Plenty strong in plywood

**Q: What are they made of? I need some that a magnet will stick to.**
A: The threaded inserts are made of carbon steel, magnets stick to carbon steel.

**Q: Can you get 1/4-20x10 non flanged brass wood inserts?? maybe 150  pieces**
A: We don't have brass wood inserts in US warehouse currently, sorry

## Customer Reviews

### ⭐⭐⭐⭐⭐ TIP TOP
*by C***N on 15 December 2025*

TOP Compatible avec les vis à dégagement rapide

### ⭐⭐⭐⭐⭐ 結構しっかりしています。
*by し***う on 29 November 2025*

ウッドデッキ材のハードウッド、イペに10mmのドリルで深さ15mm、C2くらいで面取りをしてから打ちました。しっかりしています。 六角レンチも付いていますが、少し短く、お手持ちのものを使うことをオススメします。（普通に使えますが） かなり硬い木でもしっかりと固定でき、ちゃんと使えました。 なくなったらリピします。

### ⭐⭐⭐⭐⭐ How buying hardware should be
*by M***B on 8 May 2025*



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**Shop now:** [https://www.desertcart.co.ke/products/409677120-1-4-20-hex-drive-threaded-inserts-for-wood-40](https://www.desertcart.co.ke/products/409677120-1-4-20-hex-drive-threaded-inserts-for-wood-40)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-20*