[initeq] #8-32 8-32 Threaded Heat Set Inserts for 3D Printing (Long) (100)

Great way to add durable machine screw threads to 3D printed parts that get taken apart repeatedly. More durable than using sheet metal screws or wood screws. I used to mess with pausing the print and dropping in nuts to capture them, but these are much easier. I use a variable temp soldering iron 20 degrees C hotter than the hotend temperature of the filament, like 255C for PETG. Once set, I use something that doesn’t melt, like a flat piece of wood, to hold the insert down so it doesn’t pop itself up as the plastic cools.

These are my go-to for 3D printed parts. If you’re looking to bolt together larger assemblies, this is the way to go! I found that designing a hole with a diameter of 5.9 mm makes a great fit for these. Make sure you install them straight and flush!

Fit fine

I don’t know what size I was sent, but they were definitely not #8-32, I was able to slide a 3/16 drill bit through them, when a #8-32 is barely larger than a 1/8 drill bit.

Fast shipping, easy to use!

These were bought to provide fastener threads for 3D printed parts. I made the hole in the printed part to be slightly larger than the smaller cylinder of the insert. Basically so the insert could slide partway into the hole in the plastic, until the larger insert diameter. I found a tip for my soldering iron and placed the insert on it. When hot the inert slid into the hole in the plastic. My first attempt was perfect because of doing the same with machined plastic parts. That was probably a fluke! You may have to make a practice part with several different diameter holes as a practice piece.

Gotta have these in the bins for projects.

nice

Great heat-set inserts with the exception of a few bad apples with rough threads in the bag. Not enough to make me not want to purchase them again though.

Needed threads in a plastic part, worked perfectly