M3 Tall Heat-Set Threaded Inserts for 3D Printing – Approx. 100-Pack

M3 Tall Heat-Set Threaded Inserts

Add durable, reusable M3 threads to thicker 3D-printed parts, enclosures, fixtures, mounts, and maker projects.

These tall M3 heat-set threaded inserts are designed for applications where additional insert length and engagement are preferred. They are installed into compatible thermoplastic parts using a soldering iron or dedicated heat-insert tip and provide a stronger, more repeatable threaded connection than driving a screw directly into printed plastic.

Product Details

• Thread size: M3
• Tall-body insert style
• Approximate quantity: 100 inserts
• Packaged by weight, so exact piece count may vary slightly
• Designed for heat installation into compatible plastic parts
• Suitable for repeated assembly and disassembly

Common Uses

• Thicker 3D-printed enclosures and access panels
• Structural brackets, mounts, and covers
• CNC and maker-space jigs or fixtures
• Electronics housings and project boxes
• Parts that need deeper thread engagement or repeated servicing

Installation Guidance

• Model or drill the insert pocket to the correct diameter and depth for the insert.
• Heat the insert gradually with a soldering iron or dedicated heat-set tip.
• Press the insert straight into the part without excessive force.
• Stop when the insert is flush or positioned at the intended depth.
• Allow the plastic to cool completely before installing a screw.

Important Notes

Confirm that the printed part has enough wall thickness and pocket depth for the tall insert. Test fit and installation temperature on a scrap print before installing into a finished part. Excessive heat or pressure can deform the surrounding plastic.

What’s Included

One package of approximately 100 tall M3 heat-set threaded inserts. Exact quantity may vary slightly because the product is packaged by weight.