Brass Heat Set Inserts for Plastic Materials

The 40/SC Brass Insert Single Stripe is designed to create strong, durable metal threads in plastic components. Manufactured from high-quality brass, these inserts are specifically engineered for use with thermoplastic materials and provide a reliable threaded fixing point for repeated assembly and disassembly.

Once installed, the insert allows two components to be securely joined using a standard male threaded screw or bolt. Unlike glued or press-fit alternatives, heat-set and ultrasonic installation methods create a secure mechanical bond within the plastic, delivering superior pull-out resistance, torque performance, and long-term reliability.

Ideal for Thermoplastic and Injection Moulded Components

The 40/SC insert is designed for installation using thermal (heat-set) or ultrasonic insertion processes. Simply pre-drill the plastic component to the recommended hole size and install the insert using the appropriate equipment. During installation, the plastic softens and flows around the insert body, creating a secure fixing without causing stress fractures or weakening the surrounding material.

The single stripe design creates an expansion and self-breaking effect within the plastic material, increasing retention strength and improving resistance to pull-out and rotational forces. This mechanical engagement provides a strong and durable fixing that is significantly more reliable than traditional glued, adhesive-based, or press-fit fixing methods.

Available Sizes

• M2
• M2.5
• M3
• M3.5
• M4
• M5
• M6
• M8

Key Features

• Single stripe body design for strong retention
• Designed for thermal (heat-set) and ultrasonic installation
• Creates strong, reusable metric threads in plastic materials
• Manufactured from high-quality brass
• Expansion and self-breaking design for enhanced retention
• Excellent pull-out and torque resistance
• Open design for standard threaded fasteners
• Reduces the risk of stress fractures in plastic components
• More durable than glue or press-fit alternatives
• Suitable for thermoplastics and injection moulded components
• Self-colour brass finish
• Available in a wide range of metric thread sizes

Product Specifications

Code: 40/SC
Shape: Round
Style: Open
Material: Brass
Body Type: Metric
Finish: Self Colour

Typical Applications

• Injection moulded plastic components
• Electronic enclosures
• Consumer products
• Automotive plastic assemblies
• Electrical housings
• Medical devices
• Telecommunications equipment
• Industrial plastic components
• 3D printed parts

Why Choose SC Brass Inserts?

SC Brass Inserts provide a permanent, high-strength threaded fixing point in plastic materials. Installed using thermal or ultrasonic methods, they create a secure bond within the parent material while the insert profile generates an expansion and self-breaking effect, improving resistance to pull-out and rotation. This delivers significantly greater durability and fastening strength than glued or press-fit alternatives, making them ideal for applications requiring repeated assembly and disassembly.

Product Summary

The 40/SC Brass Insert Single Stripe provides strong, reusable metric threads in plastic materials. Designed for thermal and ultrasonic installation, these brass inserts utilise an expansion and self-breaking retention effect to maximise pull-out resistance and long-term durability. Ideal for injection moulded, engineered plastic, and 3D printed components, they are available in M2 to M8 sizes.