Optimizing 3D Printing with Threaded Metal Inserts

Secure and reusable threads E-Z Lok launches a variety of inserts for 3D printing

2025-06-19 Source: E-Z- Lok 1 min Reading Time

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Threaded metal inserts offer a practical solution to improve the durability and reusability of threaded connections in 3D printed parts. E-Z Lok provides a range of press-in and heat-stake inserts designed specifically for use with thermoplastics, helping to ensure secure fastening and consistent performance in prototyping and production environments.

Ultrasonic inserts and tools. (Source: EZ Lok) — Ultrasonic inserts and tools.
(Source: EZ Lok)

3D printing has been a rapidly growing industry that allows everyone from hobbyists to engineers to easily create products and prototypes with a fraction of the investment of traditional manufacturing. This technology allows for rapid prototyping and testing of new designs. While this ease of creation is great, plastic can pose issues when fastening together parts as 3D plastic printed threads are not generally robust enough to handle repeated use.

Threaded metal inserts designed for plastic allow for strong, re-usable metal threads to be put into 3D printed parts. These inserts can be installed in several different ways, ranging from press-in installation (E-Z Press and E-Z Fin) to heat-staking with a soldering iron (E-Z Sonic).

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3.) Ultrasonic assortment kit (Source: EZ Lok)

E-Z Press & E-Z Fin (Finserts) threaded inserts for plastic offer unparalleled ease and reliability for advanced 3D printing. Their design ensures a quick and straightforward installation process, saving time and reducing labor efforts. Furthermore, the strong hold they provide ensures longevity and reliability in all projects.

E-Z Sonic heat stake inserts can be installed with a soldering iron work by heating the insert to a temperature beyond the melting point of the thermoplastic. Holes are printed or drilled and the heat stake insert is pushed into place, melting the plastic around it. E-Z Sonic inserts work well with 3D printing applications and products made from similar materials.

E-Z Lok offers both the E-Z Sonic and E-Z Press inserts in assortment kits that contain a variety of either metric or imperial threaded inserts and matching installation tools.

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