The M2 Brass Nut Insert Hot Melt Knurled Thread Heat Embedment Copper Nut is a precision-engineered fastener designed for 3D printed enclosures, plastic components, and injection-molded assemblies. Made from high-strength brass, this insert nut provides a secure and durable threaded connection for plastic parts, ensuring long-lasting performance without loosening or deformation.

With its knurled outer surface, the nut achieves excellent grip and torque resistance when embedded using heat or ultrasonic installation. Ideal for use in PLA, ABS, PETG, and nylon 3D prints, this brass insert offers professional-quality finishing for enclosures, mechanical parts, and DIY prototypes.

Features:

• High-quality brass construction for superior strength and corrosion resistance

• M2 threaded insert suitable for small-scale precision assemblies

• Knurled outer surface ensures a firm grip inside plastic material

• Outer Diameter: 3.2mm, Length: 5mm

• Easy installation using soldering iron, ultrasonic embedding, or during injection molding

• No need for pre-drilling or countersinking — built-in pilot guide ensures perfect alignment

• Heat-resistant and wear-resistant for long-term reliability

• Ideal for 3D printing applications such as mounting circuit boards, covers, hinges, and enclosures

• Reusable and vibration-resistant for mechanical stability

• Rust-proof and acid-resistant surface ensures longevity even in harsh environments

• Suitable for professional, industrial, and hobbyist use

Specifications:

• Thread Size: M2

• Material: High-strength Brass

• Color: Brass / Gold tone

• Outer Diameter (OD): 3.2mm

• Length: 5mm

• Installation Type: Heat embedment, ultrasonic, or injection molding

• Resistance: Heat, corrosion, and wear resistant

• Usage: 3D printed plastic components, injection-molded parts, electronic enclosures

How to Use:

• Drill or design a hole slightly smaller than the insert’s outer diameter (around 3mm for M2).

• Heat a soldering iron tip to approximately 180–220°C (depending on plastic type).

• Place the brass insert on the hole, and gently press it using the soldering iron.

• Allow the nut to melt into the plastic evenly until it is flush with the surface.

• Remove heat and let the part cool for a solid, permanent bond.

• Insert an M2 screw or bolt to secure the mating part.

Applications:

• 3D printed cases and enclosures

• Electronics housings and controller boxes

• Robotics and mechanical assemblies

• Injection-molded components

• DIY and prototyping projects

• CNC and small device mounting

• Plastic frame reinforcement and part fastening

Package Includes:

• 1 x M2 Brass Knurled Heat Insert Nut

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