220Pcs Brass Heat Set Insert Nuts M2-M6 for 3D Printing
220Pcs Brass Heat Set Insert Nuts M2-M6 for 3D Printing
220Pcs Brass Heat Set Insert Nuts – M2, M2.5, M3, M4, M5 & M6 Assortment
Upgrade your 3D prints and plastic resin models with this comprehensive 220-piece brass heat set insert nut kit. Precision machined from solid brass, these knurled threaded inserts are designed to be heat-pressed directly into thermoplastic parts, melting the surrounding material to create a rock-solid, durable threaded connection. Perfect for makers, engineers, and hobbyists who demand professional-grade fastening in their FDM and resin prints.
Why Choose These Heat Set Inserts?
- Premium Brass Construction: High-quality brass delivers excellent strength, corrosion resistance, and high-temperature tolerance for long-lasting performance.
- Knurled Outer Surface: The precision knurled exterior bites into the surrounding plastic as it cools, creating an exceptionally secure, pull-resistant bond.
- Versatile Size Assortment: Covers six popular metric thread sizes (M2, M2.5, M3, M4, M5, M6) in multiple lengths — 220 pieces total to suit a wide variety of projects.
- Easy Heat Installation: Simply use a soldering iron or dedicated heat-set tip to press the insert flush into your printed or molded plastic part — no threading or tapping required.
- Wide Application: Ideal for 3D-printed enclosures, RC car bodies, robotics frames, drone components, plastic resin models, and general DIY projects.
Complete Size Breakdown (220 Pieces Total)
| Size (Thread × Length × OD) | Quantity |
|---|---|
| M2 × 3 × 3.5 mm | 25 pcs |
| M2 × 4 × 3.5 mm | 25 pcs |
| M2.5 × 3 × 3.5 mm | 25 pcs |
| M2.5 × 4 × 3.5 mm | 25 pcs |
| M3 × 3 × 4 mm | 25 pcs |
| M3 × 4 × 4 mm | 25 pcs |
| M3 × 5 × 4 mm | 25 pcs |
| M4 × 4 × 6 mm | 25 pcs |
| M5 × 5 × 7 mm | 10 pcs |
| M6 × 6 × 8 mm | 10 pcs |
Specifications
- Material: Brass
- Thread Sizes: M2, M2.5, M3, M4, M5, M6
- Type: Knurled Threaded Heat Set Inserts
- Total Quantity: 220 Pieces
- Compatible With: FDM 3D printed parts, plastic resin models, thermoplastics
- Country of Origin: Made in China
Package Contents
- 220 × Brass Heat Set Insert Nuts (assorted sizes as listed above)
Looking for more handy workshop and DIY tools? Check out our Silicone Grease Lubricant for O-Rings and our 3-Piece Silicone Sealant Scraper Set to keep your projects running smoothly.
Note: Due to lighting and screen differences, colors in images may vary slightly from the actual product. Measurement tolerance is ±1–3 mm.
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Frequently Asked Questions
Q: What tool do I need to install these brass heat set insert nuts?
A: You need a soldering iron, ideally fitted with a dedicated heat-set insert tip. Set the iron to a temperature appropriate for your plastic (typically 200–250°C for PLA), place the insert on the hole, and gently press it in with the iron until it sits flush. Let the plastic cool before applying any load.
Q: Are these heat set inserts compatible with all 3D printing plastics?
A: These brass heat set inserts work best with common FDM thermoplastics such as PLA, PETG, ABS, and ASA. They can also be used in plastic resin cast parts. Avoid using them in materials with very low melting points where the heat may cause uncontrolled deformation.
Q: How many pieces come in the kit and what sizes are included?
A: The kit contains 220 pieces total across 10 size variants covering M2, M2.5, M3, M4, M5, and M6 thread sizes in various lengths — providing a well-rounded assortment for most 3D printing and fabrication projects. See the size table above for the exact breakdown.
Q: Can these threaded inserts be removed after installation?
A: Heat set inserts are designed as a permanent fastening solution. Once cooled and bonded into the plastic, removal is difficult and may damage the surrounding material. Plan your design carefully before installation to ensure correct placement.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.