Threaded insert for plastics, insert moulding (USL_HSL)

USL_HSL brass threaded inserts for plastic are designed to create strong, reliable threaded connections in thermoplastic components. Suitable for mold-in installation and compatible with heat insertion, these inserts provide a durable metal thread in applications where plastic alone would not offer sufficient mechanical strength or long-term performance.

ATS Lamberti supplies brass threaded inserts for plastic components and supports customers in selecting the most suitable solution according to the type of thermoplastic, installation method and application requirements. The goal is to help manufacturers achieve reliable fastening performance while improving the durability of plastic assemblies.

The USL series features two opposing knurled bands specifically designed to improve retention inside the plastic material. This geometry provides excellent resistance to both pull-out forces and torque, helping to maintain a secure connection even in demanding industrial applications where repeated assembly and disassembly operations are required.

These mold-in threaded inserts are installed directly during the plastic injection molding process. Integrating the insert while the component is being molded creates a permanent mechanical anchoring within the plastic, eliminating the need for additional machining or secondary installation operations after production.

The range is also available in the HSL head version, which offers a larger bearing surface and can also be used in applications involving heat installation. This configuration is particularly suitable where improved load distribution and additional stability are required.

USL_HSL brass inserts can also be used in thin-wall plastic components, making them a versatile solution for compact designs where reliable threaded fastening must be achieved without significantly increasing the dimensions of the part.

Selecting the right threaded insert for thermoplastics depends on several technical factors, including the plastic material, wall thickness, installation process, expected loads and assembly conditions. Choosing the correct insert helps improve product reliability, extend service life and reduce the risk of thread failure during operation.

ATS Lamberti provides technical support and application assistance to help customers identify the most appropriate threaded insert for their specific project. From prototype development to series production, the technical team assists in selecting the best fastening solution based on the application's mechanical and production requirements.

USL_HSL brass threaded inserts are suitable for a wide range of industrial sectors where strong, repeatable and durable threaded connections are required in thermoplastic parts. Typical applications include automotive components, electrical equipment, electronic devices, industrial machinery, consumer products and many other plastic assemblies requiring dependable fastening performance.

Complete technical specifications, dimensions and product data for the USL_HSL series are available in the dedicated plastic threaded inserts product section.