Anwenk 40Pcs 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)

I have seen these used in tonnes of Youtube videos and finally decided to try them out.They were a little long for the project i had bought them for, but I used them in another project that I had sitting on the side and they really impressed me!... Very easy to install (I used a 1/4" drill bit before using a 3/8" to finish the hole) and really hold amazingly well ... Great for those projects that you want to be able to take apart!

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.

Using these inserts to provide the 1/4 - 20 threaded holes I need in bottoms of dining chair legs so I can add some nice swivel glides. These worked perfectly. I used a 3/8" drill which provided a good fit for the inserts. You need to screw the inserts into the 3/8" holes. It's a tight fit so I lubricated the outside of the inserts with some melted candle wax to make installation easier and I used a long handle 6mm hex wrench to turn the inserts.

Liked that it came with the installation tool

These are strong! Using them in a maple butcher block surface to attach metal legs to make a desk. The included Allen wrench fits. Not one insert has broken.These completely beat the much more expensive shorter ones with a slot that I got at the local Ace. Those break so easily they’re unusable.I wasn’t able to find a 25/64" spade bit on Amazon for these so I ordered a regular wood drill bit of that size and it’s just right for these in the maple.