free form logo

Insert Installation

Add metal threaded inserts and hardware to your molded parts after molding. Our insert installation services use heat staking and ultrasonic methods to lock inserts in place cleanly and reliably.

What We Offer

Some parts call for metal threads, but molding inserts in place is not always the right choice. Post-mold insert installation lets you build the part first, then add brass or steel inserts where they are needed. The result is strong, repeatable threads that hold up under repeated assembly and disassembly.

We install threaded inserts using heat staking and ultrasonic insertion. Both methods soften the plastic around a pre-drilled or molded boss so the insert seats firmly in place. Once the plastic cools, the insert is locked in by the knurls, barbs, or grooves built into its outer surface.

Our team works with your part, your insert specs, and your production volume to choose the right method and tooling. Low-volume work runs on manual presses, while higher-volume programs use semi-automated equipment for speed and consistency.

Our Installation Process

We confirm boss size, hole depth, and insert type. The plastic, the insert material, and the load on the finished joint all factor into the right install method.

Heat staking uses a heated tip to warm the insert and press it into place. Ultrasonic installation uses high-frequency vibration to melt a thin layer of plastic around the insert as it seats. We pick the method that fits your part and material best.

The insert is pressed into the boss under controlled force, temperature, or frequency. Settings are tuned for each program to keep installation depth, perpendicularity, and pull-out strength consistent.

Each part is checked for insert depth, alignment, and bond. Pull-out and torque checks can be added on a sample basis when your project calls for them.

Finished parts move on to assembly, printing, packaging, or shipment, depending on what your build calls for next.

Start Your Insert Installation Project!

Contact Us

✉ info@freeformpolymers.com
  • (435) 774-9090
  • Open 8AM - 5PM Mon-Friday