M4 Heat Set Threaded Inserts, Brass Inserts - Heat Set Inserts for 3D Printing, Plastic Parts & Prototyping | Metric Knurled Nuts for Secure Fastening (M4 x 5 OD x 4 L - 100 Pieces)

INDUSTRIAL BOY 100pcs M4 Brass Threaded Inserts – The Ultimate Heat Set Solution for 3D Printing & Plastic Parts Upgrade your 3D-printed components with INDUSTRIAL BOY M4 Brass Inserts—designed for superior fastening in thermoplastics. Each insert features precision M3 internal threads, a 4mm length, and a 5mm outer diameter, making them perfect for securing plastic parts with maximum stability. These heat set inserts are engineered for easy installation—simply use a soldering iron or ultrasonic embedding to achieve a strong, vibration-resistant hold. The opposing spiral knurling design ensures high pull-out resistance, keeping your fasteners securely in place even under stress. Crafted from high-quality brass, these inserts provide outstanding corrosion resistance, conductivity, and durability. Whether you're working on 3D printing projects, plastic enclosures, robotics, drones, or mechanical prototypes, these inserts deliver professional-grade results. Compatible with: PLA, PETG, ABS, PP, PPS, and most thermoplastics. Works seamlessly with Anycubic, Prusa, Creality, and other 3D printers. Package Includes: ✔️ 100 x M4 Brass Threaded Inserts (4mm Length, 5mm Diameter) Why Choose INDUSTRIAL BOY? 🔹 High-Quality Brass – Corrosion-resistant & durable 🔹 Precision Knurling – Secure grip & enhanced torque resistance 🔹 Versatile Use – Perfect for 3D printing, electronics, and mechanical applications 🔹 Easy to Install – Heat-set with a soldering iron or ultrasonic embedding Upgrade your fastening solutions today with INDUSTRIAL BOY M4 Brass Inserts!

• 🔩 Precision M4 Threaded Inserts: High-quality brass heat set inserts with an M4 internal thread, 4mm length, and 5mm diameter—perfect for securing components in 3D printing and plastic parts.
• 🔥 Effortless Heat Installation: Designed for easy embedding using a soldering iron or ultrasonic insertion, these knurled nuts provide a strong hold in thermoplastics like PLA, PETG, ABS, PP, and more.
• 🔒 Superior Grip & Durability: The opposing spiral knurling enhances torque resistance, ensuring firm retention and preventing pull-out under stress—ideal for industrial, hobby, and prototyping applications.
• 🏆 Premium Brass Construction: Corrosion-resistant brass offers exceptional conductivity and long-lasting performance, making these inserts perfect for high-strength fastening needs.
• 🛠 Versatile Applications: Ideal for securing 3D-printed parts, plastic casings, electronics enclosures, drones, robotics, and mechanical assemblies—optimized for Anycubic, Prusa, Creality, and other 3D printers.