Threaded inserts for plastics, heat installation (UHL_HHL)

When a reliable metal thread is required inside a plastic component, brass threaded inserts provide an effective solution for creating strong and durable fastening points. They are particularly useful when the plastic material alone cannot guarantee the required mechanical performance, especially in applications where repeated assembly and disassembly operations are expected.

The UHL/HHL brass threaded inserts are designed for installation in amorphous thermoplastic materials and can be integrated into plastic components through different manufacturing processes, including heat staking installation and insert moulding. The correct installation method depends on the plastic material, component design and performance requirements of the final application.

A key feature of these inserts is the specially developed external knurling profile. Unlike traditional knurling patterns with sharp edges that may create stress concentrations in the plastic, the rounded knurling design helps distribute mechanical loads more evenly during installation. This improves the stability of the insert inside the component and contributes to higher resistance to rotation, reducing the risk of loosening during use.

The UHL version features a symmetrical design without a flange, making it particularly suitable for automated feeding systems and high-volume plastic moulding processes. Its geometry allows efficient positioning during automatic assembly operations, helping manufacturers optimise production flow and component reliability.

The HHL version, equipped with a head, is designed for applications where additional support and improved positioning are required. The head provides enhanced mechanical performance and helps achieve higher torque resistance, making this version suitable for demanding assemblies where secure fastening is essential.

Brass threaded inserts UHL/HHL are widely used in different industrial sectors, including automotive components, electronics, electrical equipment, industrial automation, household appliances and technical plastic parts. They are an ideal choice whenever a permanent metal thread is needed inside a plastic component, improving fastening durability and maintaining consistent assembly performance throughout the product lifecycle.

ATS Lamberti supplies brass threaded inserts for plastic applications, supporting customers in selecting the most suitable solution according to the plastic material, installation method and technical requirements of the application. Thanks to its technical expertise, ATS Lamberti helps customers identify the correct insert type and configuration, providing assistance throughout the selection process.

The range is available in different dimensions and metric thread sizes to meet common industrial requirements. For detailed information regarding dimensions, installation specifications, available sizes and technical characteristics, customers can refer to the dedicated product documentation for UHL/HHL brass threaded inserts for plastic materials.