Search  for anything...

40Pcs Anwenk 1/4"-20 x 20mm Furniture Screw in Nut Threaded Wood Inserts Bolt Fastener Connector Hex Socket Drive for Wood Furniture Assortment (with Hex Spanner)

Based on 2,203 reviews
Condition: New
Checking for the best price...
$9.99
Save $6.00 was $15.99

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Oct 29
Order within 14 hours and 29 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Color
20mm 40P
Model
Furniture Screw 20mm
Dimensions
1 x 0.5 x 0.5 in
Weight
0.27 kg
Material
Metal
Fastener Type
Hex

Features 5

  • 40pieces Pack of Furniture Screws Threaded Inserts for Wood Furniture.1/4"-20x20mm screw type. Comes with 6mm Hex Spanner.
  • Size: Internal Thread Insert Type: 1/4"-20, External Diameter: 10.5mm, Total Length: 20mm. (1/4"-20x20mm)
  • Material: High quality carbon steel with high hardness. These furniture screws are wear-resistant and very durable to use. Standard internal hex socket type without burr and non-slip design.
  • Usage: Pre-drill /drill a well-sized hole (Suggest that the diameter of the hole is 9.6 +/- 0.2mm, the length is about 23mm), then use a proper 6mm internal hex tool to screw in. Tip: If the furniture wood is with high-hardness, please enlarge the screw hole.

Description

Anwenk 40pcs of Furniture Screws Threaded Inserts for Wood Furniture Assortment 1/4"-20 x 20mm, with 6mm Hex Wrench Spec: Thread Type: 1/4"-20 Total Length: 20mm External Diameter: 10.5mm Internal Hex:6mm Material: carbon steel Hex Spanner: 6mm Quantity: 40 pieces Pack 1/4"-20x20mm Screws with a 6mm hex spanner How to Use: Pre-drill/ drill a proper size hole with length about 23mm, then screw in with a 6mm internal hex tool. Tips: 1. We suggest drilling a hole with diameter 9.6 +/- 0.2mm; 2. If the wood material is with high- hardness,enlarge the screw hole to screw in fit.

Specs 31

Material Metal
Fastener Type Hex
Thread Size 1/4 20
Exterior Finish Steel
Color 20mm 40P
Thread Type Unified National Coarse (Unc)
Inside Thread Size M10.5
Thread Style Left Hand

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Incredible price. Good quality. Step up your bit size slowly!
Color: 20mm 40P
I purchased these for the price, which is like a tenth of what I'd spend at my local hardware store or a big box store. I suspected I'd get a few duds with defective internal threads but that was not the case — I tested each of the 40 pieces in my set and the internal threads all worked fine with a 1/4-20 threaded foot. That's not to say YOU won't get some duds, just that I did not. I'm also super happy with this mfr's range of available sizes — I felt as if I had some good choice in customizing the insert size to the threaded feet I was using, as well as how far into my project's legs I wanted to go. As far as installing them, I cannot speak to hardwoods right now, but in the soft wood I was using, they were completely painless. I stepped up my drill bit sizes one by one, slowly, always checking level in two directions (I was unable to fit my particular project into a drill press), and I installed them into the legs also very slowly, and also always checking level in two directions. I definitely recommend this product and I will almost certainly buy again. ... show more
Reviewed in the United States on August 7, 2022 by blair cerny

Great for use with DIY wooden knobs.
Color: 15mm 40P
I make wooden knobs for many different projects and I prefer to attach the bolt to the knob in many cases. These are great because they can go into a piece and wont just pull out if stress is put on them like with some tee nuts. They leave the piece with a clean look and I feel like I can depend on them since they are threaded in. ... show more
Reviewed in the United States on September 26, 2023 by Dan Widener

Good inserts , strong and functional
Color: 15mm 40P
They are solid, and threads are sturdy. When used in soft woods or plywood they are fine, no issue whatsoever. When used on hardwoods (oak particularly) i had some trouble getting the insert all the way in, without stripping the hex (wrench) part of the insert. I tried to make the insert hole a little larger with drill but not much luck there. Was scared to go up a size I only have limited size drill bits and woulda had to go like a full 16th larger. In the end I managed to get them all in on my project and it worked out, it was just a little more difficult than on pine. ... show more
Reviewed in the United States on November 19, 2019 by John & Nicki Corbin

Hardware
Color: 10mm 40P
The mention itemis a good quality, and it serves its purposes…
Reviewed in the United States on September 29, 2025 by Robert Rob Rivera

Excellent Value for the Money, Easy Installation...
Color: 15mm 40P
I used these on a solid Cherry fold down 4 stage conversion crib/bed I made for my daughter, she was expecting with my second grand baby.. and was looking for something that would make assembly and the conversions simple and easy.. Simply put, the Crib is rock solid with these things.. I used 3 in the head board and foot board on each side for the side panels and 3 on each side of the foot board to hold the fold down panel/toddler bed insert panels in and then another 16 for the 2 height adjustable crib mattress support.. 8 for each height adjustment.. locking it to the head and foot board with an L bracket.. I wanted to use one tool for all assembly and adjustments, these made it easy to do.. using 1/4-20 cap head screws for everything.. I used a 21/64 or .328 drill for the holes being that the minor thread dia is .322 with calibers.. ... show more
Reviewed in the United States on June 11, 2019 by Michael

Conformidad total con la compra
Color: 15mm 80P
Siempre consegui productos con buena relación calidad precio
Reviewed in the United States on April 23, 2026 by Juan Carlos Zazzi

High quality fittings suitable for hardwood
Color: 15mm 40P
These were great for building my son a climbing triangle. This hex screw version is definitely preferable to the flat head designs from other manufacturers, as you’ll need to use a decent amount of torque to drive them in. These went into hardwood without much trouble and compressed the wood just enough to lie flush with the surface (great for parts that articulate closely with others). The included Allen wrench was a nice touch as well. These seemed to be high quality fittings and were perfect for our project. ... show more
Reviewed in the United States on January 4, 2020 by Joshua Clayton

Work great
Color: 20mm 40P
I use these regularly four my furniture builds.
Reviewed in the United States on March 1, 2026 by Laura Maxfield
Checking for best price...