Looking for the best brass insert for your 3D printed parts? We’ve got you covered with a list of top 10 brass inserts to enhance the strength and durability of your 3D prints.
3D printing has changed how we make things, but plastic parts can lack strength. Brass inserts solve this problem by adding strong threads to your prints. They make your projects durable and reliable.
These inserts are easy to use and work with heat or ultrasound. They come in different sizes to fit all your needs. With brass inserts, your 3D prints can handle heavy use without breaking.
Find the best brass insert for your project. Boost your 3D prints today! Start creating stronger parts now.
List of Top 10 Brass Insert For 3D Printed Parts
| Image | Title | Best For | Price |
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Kadrick 520Pcs M2 M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts |
This Kadrick 520Pcs Threaded Inserts Assortment Kit is perfect for 3D printing enthusiasts who need a reliable way to add threads to plastic parts. It’s easy to use and works great for strong, secure connections. |
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ruthex M3 Threaded Inserts – 100 Pieces RX-M3x5.7 Brass Heat Set Insert for Plastic Parts – Metric knurled Nuts – Insert by Heat into 3D Printing Components |
These M3 threaded inserts are perfect for 3D printing fans who want to strengthen their plastic parts. They work great with PLA, PETG, ABS, and more. |
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FFVRVSS 600+7Pcs M2 M2.5 M3 M4 M5 M6 Premium Brass Threaded Inserts, Metric Brass Knurled Nuts Assortment Kit, with Heat Set Insert Tool, for Plastic and 3D Printing Components, All-in-one Solutions |
This all-in-one kit is perfect for 3D printing enthusiasts and DIY lovers. It’s also great for anyone working with plastic parts, like automotive or electronics projects. |
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440Pcs Threaded Inserts Bolt Set M2.5 M3 Heat Set Insert Brass Nut with Bolt for 3D Printed Plastic Parts |
This 440-piece threaded insert bolt set is perfect for 3D printing enthusiasts and makers. It’s ideal for securing 3D-printed parts with strong, durable connections. |
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HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts – Brass Metric Knurled Nuts (100 Pieces) |
HANGLIFE Heat-Set Threaded Inserts are perfect for 3D printing fans and makers. They work great for plastic parts and boost the strength of your projects. |
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Ktehloy 400Pcs Threaded Inserts, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit, Brass Heat Set Insert for Plastic and 3D Printing Components (Threaded Inserts Ket) |
Perfect for 3D printing enthusiasts and professionals, this assortment kit is ideal for anyone working with plastic components. Whether you’re crafting automotive parts or laptop shells, these threaded inserts offer a reliable and durable solution. |
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3DZWMAN Heat Set Insert Tools kit Brass Nuts 3D Printing 60W Digital Soldering Iron and 380 Pcs Kit Threaded Inserts with Insert Tips M2 M2.5 M3 M4 M5 M6(1/4) M8 for inserts 3d printing and plastic |
This 3DZWMAN Heat Set Insert Tools kit is perfect for 3D printing enthusiasts and professionals who need a reliable and portable soldering iron. It’s ideal for industrial use and threading inserts into plastic parts. |
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ruthex M3 Threaded Inserts Short – 100 Pieces RX-M3Sx4.0 Brass Heat Set Insert for Plastic Parts – Metric knurled Nuts – Insert by Heat into 3D Printing Components |
Perfect for 3D printing enthusiasts, these M3 threaded inserts are ideal for anyone looking to strengthen plastic parts. Whether you’re working with PLA, PETG, ABS, or other materials, these brass inserts offer a reliable and long-lasting solution for your projects. |
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Ktehloy 120Pcs M3 Threaded Inserts, Metric knurled Nuts Brass Heat Set Insert for Plastic Parts,Insert by Heat into 3D Printing Components(M3x4x5mm) |
Ktehloy 120Pcs M3 Threaded Inserts are perfect for 3D printing enthusiasts and makers. They are ideal for anyone who needs strong, reliable connections in plastic parts. |
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HANGLIFE Heat-Set Threaded Inserts, M4 Heat Set Insert for 3D Printing Components and Plastic Parts – Brass Metric Knurled Nuts (100 Pieces) |
HANGLIFE Heat-Set Threaded Inserts are perfect for 3D printing fans and makers. They work great for strong, lasting projects. |
Detailed Reviews
Discover the best brass inserts for your 3D printed parts. This guide showcases top picks, ensuring stronger, more reliable components. Find the perfect fit for your projects with ease. Let’s dive into the ultimate selection!
1. Kadrick 520Pcs M2 M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts

The Kadrick 520Pcs Threaded Inserts Kit is perfect for 3D printing. It includes brass inserts in sizes M2, M3, M4, and M5. These inserts are great for adding threads to plastic parts.
The inserts are easy to use. You can insert them using heat from a soldering iron or ultrasound.
Made of high-quality brass, these inserts are corrosion-resistant. They provide strong grip and can handle high tensile forces.
| Pros | Cons |
|---|---|
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Perfect For:
This Kadrick 520Pcs Threaded Inserts Assortment Kit is perfect for 3D printing enthusiasts who need a reliable way to add threads to plastic parts. It’s easy to use and works great for strong, secure connections.
Ready to Purchase?
2. ruthex M3 Threaded Inserts – 100 Pieces RX-M3x5.7 Brass Heat Set Insert for Plastic Parts – Metric knurled Nuts – Insert by Heat into 3D Printing Components

Ruthex M3 Threaded Inserts are your perfect solution for strengthening 3D printed parts. These brass heat set inserts are designed to be easily embedded into plastic components, giving them a secure and durable threaded connection.
They offer easy application and stable, long-lasting threads. These inserts are suitable for a variety of plastics, making them a versatile choice for your projects.
| Pros | Cons |
|---|---|
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Perfect For:
These M3 threaded inserts are perfect for 3D printing fans who want to strengthen their plastic parts. They work great with PLA, PETG, ABS, and more.
Ready to Purchase?
3. FFVRVSS 600+7Pcs M2 M2.5 M3 M4 M5 M6 Premium Brass Threaded Inserts, Metric Brass Knurled Nuts Assortment Kit, with Heat Set Insert Tool, for Plastic and 3D Printing Components, All-in-one Solutions

The FFVRVSS 600+7Pcs kit is your all-in-one solution for 3D printing and plastic components. It includes the 6 most common metric sizes of brass threaded inserts, plus a heat set tool.
Premium brass ensures long-lasting strength and corrosion resistance. The knurled design provides a secure grip, preventing slippage. Each insert is precisely threaded for easy installation.
Clear compartments keep inserts organized and easy to find. Works with all thermoplastics for versatile use. Every piece is quality-checked for reliable performance.
| Pros | Cons |
|---|---|
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Perfect For:
This all-in-one kit is perfect for 3D printing enthusiasts and DIY lovers. It’s also great for anyone working with plastic parts, like automotive or electronics projects.
Ready to Purchase?
4. 440Pcs Threaded Inserts Bolt Set M2.5 M3 Heat Set Insert Brass Nut with Bolt for 3D Printed Plastic Parts

This 440-piece set includes a variety of threaded inserts and bolts in M2.5 and M3 sizes. It is perfect for 3D printing applications. You’ll always have the right part for your project.
Made from brass and stainless steel, the inserts and bolts are durable. The brass inserts resist corrosion and wear. The stainless steel bolts offer excellent strength and longevity.
With 440 pieces total, you’ll have plenty for large projects. These fasteners ensure your assemblies stay secure. The inserts and bolts together create a strong and stable connection.
| Pros | Cons |
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Perfect For:
This 440-piece threaded insert bolt set is perfect for 3D printing enthusiasts and makers. It’s ideal for securing 3D-printed parts with strong, durable connections.
Ready to Purchase?
5. HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts – Brass Metric Knurled Nuts (100 Pieces)

The HANGLIFE Heat-Set Threaded Inserts are perfect for 3D printed parts. They fit easily and hold strong.
These inserts are made of brass. They resist breaking and corrosion. You can use them many times.
They work with all plastics like PLA, ABS, and PETG. They are easy to install with heat. Each set has 100 pieces.
| Pros | Cons |
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Perfect For:
HANGLIFE Heat-Set Threaded Inserts are perfect for 3D printing fans and makers. They work great for plastic parts and boost the strength of your projects.
Ready to Purchase?
6. Ktehloy 400Pcs Threaded Inserts, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit, Brass Heat Set Insert for Plastic and 3D Printing Components (Threaded Inserts Ket)

Ktehloy Threaded Inserts are a must-have for 3D printing and plastic component assembly. This kit includes 400 pieces in various sizes, ensuring you have the right fit for your projects. Made from high-quality brass, these inserts are built to last.
The precision craftsmanship ensures a secure and stable connection. With 45-degree knurling, these inserts provide excellent torque resistance. They are easy to install, making your work efficient and hassle-free.
Perfect for 3D printing enthusiasts and professionals, these inserts work with all thermoplastics. From automotive casings to laptop shells, they offer a reliable and durable solution. A great addition to your toolkit!
| Pros | Cons |
|---|---|
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Perfect For:
Perfect for 3D printing enthusiasts and professionals, this assortment kit is ideal for anyone working with plastic components. Whether you’re crafting automotive parts or laptop shells, these threaded inserts offer a reliable and durable solution.
Ready to Purchase?
7. 3DZWMAN Heat Set Insert Tools kit Brass Nuts 3D Printing 60W Digital Soldering Iron and 380 Pcs Kit Threaded Inserts with Insert Tips M2 M2.5 M3 M4 M5 M6(1/4) M8 for inserts 3d printing and plastic

The 3DZWMAN Heat Set Insert Tools Kit is perfect for 3D printing and plastic projects. It includes a 60W digital soldering iron and 380 threaded inserts. This kit has everything you need for strong, reliable connections.
It’s corded electric and portable, making it easy to use anywhere. The soldering iron tips are included for precise work.
With M2 to M8 insert tips, this kit works for all your project sizes. It’s ideal for industrial use and DIY tasks. Get professional results every time!
| Pros | Cons |
|---|---|
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Perfect For:
This 3DZWMAN Heat Set Insert Tools kit is perfect for 3D printing enthusiasts and professionals who need a reliable and portable soldering iron. It’s ideal for industrial use and threading inserts into plastic parts.
Ready to Purchase?
8. ruthex M3 Threaded Inserts Short – 100 Pieces RX-M3Sx4.0 Brass Heat Set Insert for Plastic Parts – Metric knurled Nuts – Insert by Heat into 3D Printing Components

The Ruthex M3 Threaded Inserts are perfect for your 3D printed parts. They can be easily inserted using heat or ultrasound. These inserts are strong, long-lasting, and easy to use.
Made from brass, they offer excellent corrosion resistance and thermal conductivity. These inserts work with many plastics, including PLA, ABS, and PETG.
| Pros | Cons |
|---|---|
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Perfect For:
Perfect for 3D printing enthusiasts, these M3 threaded inserts are ideal for anyone looking to strengthen plastic parts. Whether you’re working with PLA, PETG, ABS, or other materials, these brass inserts offer a reliable and long-lasting solution for your projects.
Ready to Purchase?
9. Ktehloy 120Pcs M3 Threaded Inserts, Metric knurled Nuts Brass Heat Set Insert for Plastic Parts,Insert by Heat into 3D Printing Components(M3x4x5mm)

The Ktehloy 120Pcs M3 Threaded Inserts are designed for plastic heat-setting. This set includes 120 high-quality brass inserts with dimensions of M3x4x5mm. These inserts are ideal for connecting 3D printed parts.
Made of premium brass, they offer excellent thermal conductivity and corrosion resistance. They can withstand temperatures over 300°C without breaking or deforming. Their 45-degree knurling enhances torque resistance and tensile strength.
These inserts are easy to install. Simply use a soldering iron or heating method. They work with all thermoplastics, including PLA, ABS, PETG, and more.
| Pros | Cons |
|---|---|
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Perfect For:
Ktehloy 120Pcs M3 Threaded Inserts are perfect for 3D printing enthusiasts and makers. They are ideal for anyone who needs strong, reliable connections in plastic parts.
Ready to Purchase?
10. HANGLIFE Heat-Set Threaded Inserts, M4 Heat Set Insert for 3D Printing Components and Plastic Parts – Brass Metric Knurled Nuts (100 Pieces)

HANGLIFE Heat-Set Threaded Inserts are your go-to for stronger, more reliable 3D prints. These brass inserts make it easy to add secure threads to your plastic parts.
They offer a super strong hold that won’t come loose. Installation is a breeze, just add heat! Plus, they’re built to last and resist rust.
| Pros | Cons |
|---|---|
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Perfect For:
HANGLIFE Heat-Set Threaded Inserts are perfect for 3D printing fans and makers. They work great for strong, lasting projects.
Ready to Purchase?
Buying Guide
Brass inserts make 3D printed parts stronger and more reliable. They add durable threads to plastic, so your projects last longer.
Factors to Consider When Buying Brass Inserts:
– Size: Choose the right size (like M2, M3, M4) to fit your 3D printed parts perfectly.
– Material: Look for high-quality brass for corrosion resistance and longevity.
– Installation Method: Decide if you’ll use heat or ultrasound to insert them.
– Quantity: Buy kits with enough pieces for your projects, like 100 or 500.
– Knurling: Knurled designs provide a secure grip and prevent slippage.
– Compatibility: Ensure they work with your plastic type (PLA, ABS, PETG, etc.).
– Tools Included: Some kits come with heat set tools or soldering irons for easy installation.
– Durability: Check for tensile strength and wear resistance for heavy use.
– Organization: Kits with clear compartments keep inserts sorted and easy to find.
Engaging Experience:
With the right brass inserts, your 3D prints will handle heavy use without breaking. You’ll enjoy hassle-free installation and professional results every time.