Kadrick 520Pcs M2 M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts

Great quality and they work like they should.

The media could not be loaded. Works just as expected and no issues with setting them using a soldering iron. Case is sturdy enough but I'd keep a rubber band around it just incase, would hate to have it accidentally open and try to pick up all the inserts. Only have tried the m5x10 and it worked perfect with my m5 bolt that I used. Great value for the money and good variety to test out. Will refill with the same brand as needed.

These are good inserts for the price. They don’t spin when a torque is applied to them, and they are easy to install correctly. Just use the hole size listed for the smaller diameter and it fits like a glove. Also, make sure you use enough perimeters around the hole to ensure it’s good strength. I usually do a minimum of 4 perimeters around the holes.

Used for my 3d prints. Works great.Holds tight into my prints. Assortments are nice as random projects come up all the time. Love it!

Perfect screw set for use with 3D printing projects

Almost too much variety. Nice set with a lot of size options

These worked out better than expected! It’s a little difficult lining the insert up with the screw hole when using a soldering iron to press the insert in. But that’s a process issue not an insert issue, these were great.

Handy kit covers most needs.