--- product_id: 124548439 title: "1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces" brand: "sprite science" price: "£10.81" currency: GBP in_stock: true reviews_count: 13 category: "Sprite Science" url: https://www.desertcart.co.uk/products/124548439-1-4-20-hex-drive-threaded-inserts-for-wood-40 store_origin: GB region: United Kingdom --- # 6mm Allen Wrench Included 1/4-20 Thread Size 15mm Length Precision 1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces **Brand:** sprite science **Price:** £10.81 **Availability:** ✅ In Stock ## Summary > 🔩 Screw in Success: The ultimate wood insert kit for pros who demand 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?** £10.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/124548439-1-4-20-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 pieces to power through your projects without constant reordering. - • **Effortless Installation:** Pre-drilled hole + included hex key = flawless fit every time. - • **Pro-Grade Thread Design:** Right-hand UNC threads for secure, vibration-resistant fastening. - • **Universal Compatibility:** Designed for wood, plastic & furniture projects—versatility unlocked. - • **Durable Zinc-Plated Steel:** Corrosion-resistant finish ensures long-lasting strength and style. ## Overview This 40-piece set of 1/4-20 hex drive threaded inserts for wood features 15mm length zinc-plated carbon steel inserts with a 6mm allen wrench included. Engineered for easy screw-in installation into pre-drilled holes, these inserts provide durable, vibration-resistant fastening ideal for furniture, woodworking, and plastic projects. Trusted by professionals and DIYers alike, they combine precision engineering with bulk convenience. ## Description Product description Wood Threaded Inserts are insert nuts that go into a predrilled hole in wood and has internal threads. These wood insert nuts feature threaded designs, external protrusions bite into the wood, providing superior holding power and preventing the insert nuts from either turning or pulling out in all applications. Our inserts work great with soft woods and hard woods. For wood applications requiring a threaded-in insert, consider our quanlity inserts and you will be suprised by our products. Pack of 40 1/4-20 Threaded Inserts for Wood Screw in threaded inserts are best for softer woods plywood and hardwood, their outer threads cut easily into your wood applications, you just need to drill a hole that the size of the body into the wood for the threaded insert. Length: 0.591" (15mm). Body Φ: 0.315" (8mm). Threads Φ: 0.410" (10.4mm) Recommended Drill Bit for Soft Wood: 9 mm Bit, If Small, Try 3/8" Bit. Recommended Drill Bit for Hard Wood: 3/ 8" Bit, If Small, Try 10mm Bit. (Be careful with hard materials) ◤Note:◥ For Reference Only, as best practice varies between your applications, the size of Drilling Hole Depends on the Hardness of Your Wood. For wood applications requiring a screw-in insert, consider our threaded Insert, they are inexpensive solution for reinforcing threads in hard woods, soft woods, and plywood. These wood threaded inserts are easy to install, simply drill the right sized hole and thread the insert into place using a screwdriver or a 6mm allen wrench. Review: How buying hardware should be - I used these when building a crib. They go in easy and look great. I was impressed by the quality and the attention to detail the sellers had. The bag had all the size information and drilling requirements. I used 24 of them and they each performed well. They even included an allen wrench. I have plenty of them, but it is nice to keep everything in the same spot. Now when I store them and use them later, the directions and the allen wrench will be in the same bag. Great job, this is how buying hardware should be. Review: Works well - Arrived promptly and well packaged. Works well for wood working and furniture making ## 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 | #9,392 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Nut Inserts | | Brand | Sprite Science | | Color | White | | Compatible Groove Diameter | 10.4 Millimeters | | Customer Reviews | 4.7 out of 5 stars 2,000 Reviews | | Drive Style | External Hex | | Exterior Finish | Zinc | | Fastener Type | Insert | | Finish Types | Zinc plated carbon steel | | Grade Rating | industrial | | Inside Thread Size | 0.410 INCH / 10.4MM | | Item Diameter | 0.25 Inches | | Item Weight | 0.2 Kilograms | | Manufacturer | Sprite Science | | Material | Carbon Steel | | Material Type | Carbon Steel | | Metal Type | Carbon Steel | | Model | 1/4-20WOODINSERT | | Number Of Items | 40 | | Number of Pieces | 40 | | Outside Diameter | 11.7 Millimeters | | Part Number | 1/4-20WOODINSERT | | Screw Head Style | Flat | | Set Name | 40 pieces | | Size Name | 1/4-20 x 15mm*40pcs | | Thread Class | Class 2A | | Thread Size | 1/4"-20 | | Thread Style | Right Hand | | Thread Type | Unified National Coarse (Unc) | ## Product Details - **Color:** White - **Exterior Finish:** Zinc - **Fastener Type:** 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) ## Available Options This product comes in different **Size** options. ## 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 ### ⭐⭐⭐⭐⭐ How buying hardware should be *by M***B on May 8, 2025* I used these when building a crib. They go in easy and look great. I was impressed by the quality and the attention to detail the sellers had. The bag had all the size information and drilling requirements. I used 24 of them and they each performed well. They even included an allen wrench. I have plenty of them, but it is nice to keep everything in the same spot. Now when I store them and use them later, the directions and the allen wrench will be in the same bag. Great job, this is how buying hardware should be. ### ⭐⭐⭐⭐⭐ Works well *by L***K on April 10, 2026* Arrived promptly and well packaged. Works well for wood working and furniture making ### ⭐⭐⭐⭐ Good value though quality isn’t perfect *by J***. on March 8, 2025* They work as expected and the quality is decent. Minus one star because the faces are a little rough looking and they have a tends to seat slightly crooked so that they do not sit perfectly flush with the surface of the wood. ## Frequently Bought Together - 1/4-20 Hex Drive Threaded Inserts for Wood - 40 Pieces - 1/4-20 x 3/4" Flat Head Socket Head Screw Furniture Bolts Countersunk Connector Screws, Stainless Steel 18-8 (304), Black Oxide, Fully Threaded, 25 PCS - Hard-to-Find Fastener 014973445713 Joint Connector Bolts, 1/4-20 x 1.18, Piece-10,Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/124548439-1-4-20-hex-drive-threaded-inserts-for-wood-40](https://www.desertcart.co.uk/products/124548439-1-4-20-hex-drive-threaded-inserts-for-wood-40) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-23*