🔩 cSeao 120pcs M3 x 3 x 5mm Female Thread Brass Heat Set Inserts Embedment Nuts for 3D Printer, Laptop, and Plastic - Enhanced SEO Review

inserts are made of high quality brass, clean workmanship. They work great in my 3D prints. There were 126 inserts in my order. Bonus!

They did what they had to do. It would have been nice if they had a little taper to help with alignment as one was misaligned during installation and I had to print a new part.

I needed coreXY portal inserts and they fitted perfectly. They're flimsy, but the knurling really helps secure them. The box comes with an adhesive tape securing the lid, meaning it will close.

i need about eight so my project is good. I bought 80 and less than half of the bag met the specs. In fact, the pitch is not indicated on the bag, only M4. The pitch is said to be 0.7mm and this applies to about 30 of them, with the rest not bolted to M4x.7 screws. Included is a picture of some of the buzzers I received in the bag that did not meet the specs. Note jagged edges and some broken ones. Some expensive spare parts package. I hope to keep the right ones.

I hate 3 star reviews because I feel like they don't help at all to categorize a product as good or bad. However, I really don't have a choice here. Half of the things I received were perfect. The other half wouldn't accept the bolts without pushing them in (essentially tapping the bolts on the threads). I only needed about 25 of these so it wasn't really a problem for me. But if you need all of these parts for your project, you will probably run into problems. You can screw them in because…

I have decided to use these instead of packing nuts in 3D printing projects. They are good and make it a lot easier to assemble things that you often need to assemble. However, they are not super cheap, but neither are they expensive enough to justify restoration of designs/prototypes. I didn't have any lemons in my first batch and just ordered a second one. If you use them for 3D printing you will need a 4.8mm or 4.9mm hole. Don't make the holes smaller or the plastic will interfere with your…