Products

THREADED INSERT FOR PLASTIC WITH MOLDED-IN INSTALLATION (USL_HSL)

BRASS THREADED INSERTS FOR INSERT MOULDING IN PLASTIC COMPONENTS

Brass threaded inserts for thermoplastic components, suitable for mold-in installation and heat insertion

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.

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    See features

    BRASS THREADED INSERT WITH MOLDED-IN INSTALLATION (USL_HSL)

    APPLICATION TERMOPLASTIC MATERIAL
    ASSEMBLY HEAT, OVERMOLDING

FAQ and insights

USL_HSL brass threaded inserts for plastic are metal components designed to create strong and reliable threaded connections inside thermoplastic materials. They provide a durable metal fastening point, improving the mechanical strength of plastic components, even in applications requiring repeated assembly and disassembly operations.

USL_HSL inserts are installed directly during the mold-in process or through heat insertion, depending on the application requirements and the production process used.

A threaded insert for plastic allows the creation of a strong metal fastening point inside a thermoplastic component, providing a more reliable solution compared to a thread directly formed in the plastic material.

Thanks to the presence of the metal insert, the component can better withstand repeated assembly and disassembly operations as well as mechanical stresses, improving the durability and reliability of the final assembly.

USL threaded inserts feature two opposing knurled bands designed to improve anchoring inside the plastic material.

This specific geometry provides a stable and reliable fastening, ensuring high resistance to pull-out forces and torque, even in applications subject to mechanical stresses and repeated assembly operations.

With mold-in installation, the threaded insert is integrated directly during the plastic component molding process. The insert becomes embedded into the thermoplastic material during production, creating a stable and permanent connection between metal and plastic.

With heat insertion, on the other hand, the insert is installed after the component has already been molded through a controlled heating process. The heat locally melts the thermoplastic material, allowing the insert to be positioned correctly and securely locked inside the plastic.

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