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

M3 Short Heat-Set Threaded Inserts

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

These short M3 heat-set threaded inserts are designed for installations where a standard-length insert may be too tall for the available wall thickness. They are installed into compatible thermoplastic parts using a soldering iron or heat-insert installation tip and provide a stronger, more repeatable threaded connection than driving a screw directly into printed plastic.

Product Details

• Thread size: M3
• Short-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

• Compact 3D-printed enclosures and access panels
• Thin-wall brackets, mounts, and covers
• CNC and maker-space jigs or fixtures
• Electronics housings and project boxes
• Parts that require removable screws 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

Test fit and installation temperature on a scrap print before installing into a finished part. Excessive heat or pressure can deform the surrounding plastic. Installation settings vary by material, wall thickness, insert style, and printer calibration.

What’s Included

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