EEEEE M2 M2.5 M3 M4 M5 M6 (350pcs) Metric Threaded Inserts for Plastic Heat Set Insert Knurled Nut Insert Threaded Brass Insert Assortment Kit for 3D Printing Injection Molding Press Thread Nuts

The case provided with these inserts is exceptional for keeping things organized.

A rare but pleasant surprise: the set now seems to contain more inserts than stated in the description. The box I received had 6 each of the M6 inserts, 8 each of the M5 inserts, and 20 each of the M4 inserts, for a total of 122 instead of the stated 100 in the description. Quality seems decent, and the case is better than others because of how compact it is for the number of different sizes.

Will be buying more of these. Not much to say but they are threaded well and are great for 3D printed Items that need a thermal insert.I dont have the fancy soldering iron tool but you can use a regular iron, just clean the tip and Pre-set the nut in the back side of the hole, Place the soldering iron tip in the nut and gently press it into position and let it cool. Just make sure you don't have solder on your iron tip that could clog the threads. Also always make sure you insert the but in the opposite side on where your going to pull from for better strength.

Works well! And this case is awesome!! So much easier to use than containers with one lid and many compartments.

These are really quite good. I use these in small-scale production and manufacturing, and I have found them to be just as good as the name-brand expensive ones. The variety pack is really nice for prototyping and "always having it on the shelf" ready to go. The dimensions are shockingly precise, far more precise than anything you would ever need given the application. I have tired out much more expensive name-brand ones and they are no better for the extra money, but these are certainly a million times better than the standard injection molding or straight knurled inserts most of us are probably used to and hate by nowHighly recommend trying these out if you have been searching for a good insert that is worth the money and will make your life easier whether you are a hobbyist or doing this for business.

This is a great set of threaded inserts! The container is so helpful! Color codes make it easy to find and choose exactly what you want. It is also uniquely assorted sizes from most sets I have found. Super happy with this set.

Works good

the work with pla and abs that ive tried with so far screws go in nice and tight