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Brass Heat-Set Inserts for Plastic - M3 x 4mm - 50 pack

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Elmwood Electronics has stopped accepting orders. This product might be available at PiShop.ca. Please check this blog post about our recent team merger.

Wanna improve the connection strength between your project's 3D-printed parts, and also have nice clean surfaces? Instead of gluing bits together, or screwing plastic screws directly into your 3D prints, use strong and reusable machine screws and heat-set inserts. Heat set inserts are only a few cents a piece and have a grooved outside, with theads on the inside. Originally they were designed for injection molded parts but they work fabulously for 3D printed plastic as well.

You could use a plain soldering iron to try to heat-press these in - Heat up the iron and use it to press the insert in, wait for it to cool, then use like a hex nut that's embedded inside the plastic. We strongly recommend our heat-set insert tool for soldering irons because it's really hard to insert them straight otherwise and you risk damaging your print!

Check out this video from Noe & Pedro that shows you how to do it

Comes as a 50 pack of M3-threaded inserts that are 4mm long.

Technical Details

  • Outer diameter: 4.2mm
  • Height: 4mm