Specifications:
The document provides specifications for the HSS series of Heatstake/Ultrasonic Headed Studs. The table lists various part numbers with corresponding dimensions and features, including thread size, external diameter, head diameter, head thickness, insert length, stud length, hole diameter, and minimum wall thickness. The parts range from M2.0 to M8.0 thread sizes, with varying dimensions for each.

Materials and Finishes:
The studs are available in Brass Self Colour, with an option for nickel plating upon request. Additionally, 303 Stainless Steel is available as a special order.

Installation and Features:
The HSS Insonic Range of Inserts can be installed using ultrasonic or heat insertion machines in all thermoplastics. They feature a unique opposing helix knurl that provides exceptional resistance to torque loads and enhances the flow of plastic into recessed grooves, resulting in greater pullout loads compared to alternative designs.

Usage Instructions:
To specify a part, use the format: Series No / Part No / Length (e.g., 20106 HSS050L15 M5x15 long stud).

Recommendations:
All information is provided for guidance only. Designers are advised to request samples to ensure the suitability of the specifications for their specific applications.