Looking for the best insert to secure your 3D printed components? We’ve compiled a list of 10 top-rated inserts that offer strong connections, easy installation, and long-lasting results for your 3D printing projects.
Securing 3D printed components is crucial for any project. The right inserts can make all the difference in strength and durability.
Brass threaded inserts are a top choice for 3D printing enthusiasts. They offer strong connections and easy installation. These inserts work well with thermoplastics like PLA and ABS.
With various sizes and kits available, finding the perfect fit is simple. Enjoy long-lasting results and hassle-free assembly for your creations.
List of Top 10 Insert For Securing 3D Printed Components
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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 FFVRVSS Brass Threaded Inserts Kit is perfect for makers, hobbyists, and DIY enthusiasts who want a hassle-free, all-in-one solution for their 3D printing and plastic component projects. If you’re tired of searching for the right parts and tools, this kit offers unbeatable convenience and quality for secure, long-lasting fastenings. |
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FFVRVSS 300+6Pcs M2 M2.5 M3 M4 M5 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 who want strong, reliable fastenings. It’s also great for anyone working with plastic components, like automotive shells or laptop casings, who need easy organization and long-lasting results. |
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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 M2 M3 M4 M5 Threaded Inserts Assortment Kit is perfect for 3D printing enthusiasts and makers who need to add strong, reliable threads to their plastic projects. |
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Yaocom 300 Pcs M3 Threaded Inserts M3 x D5 x L4 Heat Set Inserts Brass 3D Printing Knurled Metric Nuts for Plastic, 3D Printing Components |
This 300-piece set of M3 threaded inserts is perfect for 3D printing enthusiasts and anyone working with plastic components. They offer a secure and stable way to add threads to your projects, making them ideal for electronic items and circuit board fixing. |
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INDUSTRIAL BOY Heat Set Threaded Insert, Brass Inserts – Heat Set Inserts for 3D Printing, Plastic Parts & Prototyping | Metric Knurled Nuts for Secure Fastening (M5 x 7 OD x 4 L – 50 Pieces) |
This product is perfect for anyone who needs strong, secure fastening in 3D printing, plastic parts, or prototyping. Whether you’re working on industrial projects, hobby builds, or mechanical assemblies, these brass inserts offer easy installation and lasting durability. |
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Opfiue 40 PCS 1/4″ Heat Inserts 1/4″-20x10x8 Brass Threaded Inserts 3D Printing Knurled Nuts, Metric Nuts for 3D Printing and Components |
Opfiue 40 PCS 1/4″ Heat Inserts are perfect for 3D printing fans and electronics makers. They work well for indoor and outdoor projects. |
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100-Pack M3 Threaded Inserts – Heat Set Inserts – M3x4x5 Female Thread Metric Knurled Nuts – Brass Insert Nut Threaded Inserts for Plastic 3D Printing Components Loptop Automotive Shell |
These M3 threaded inserts are perfect for anyone who works with 3D printing, plastic components, or electronic items. Whether you’re reinforcing joints, securing parts, or fixing circuit boards, this bulk pack of 100 brass inserts is easy to use and ensures a strong, reliable connection. |
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200Pcs Threaded Inserts Bolt Set 100pcs M3x4x5 Heat Set Insert Brass Nut with 100pcs Bolt for 3D Printed Plastic Parts |
This 200-piece threaded insert bolt set is perfect for 3D printing enthusiasts and makers. It’s ideal for securing 3D-printed parts with strong, lasting connections. |
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Yaocom 100 Pcs M6 Threaded Inserts M6 x D8 x L8 Heat Set Inserts Brass 3D Printing Knurled Metric Nuts for Plastic, 3D Printing Components |
Yaocom M6 Threaded Inserts are perfect for 3D printing fans, makers, and anyone fixing electronics. They’re great for plastic parts, computer items, and circuit boards. |
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PATIKIL M10 Threaded Inserts, 12 Pcs Female Metric Brass Knurled Nuts Heat Set Insert for Plastic 3D Printing Components (M10x10x12mm) |
Perfect for 3D printing enthusiasts and professionals, these threaded inserts are ideal for anyone looking to strengthen plastic parts. Whether you’re building prototypes or reinforcing joints, they ensure durability and stability. |
Detailed Reviews
Discover the top 10 inserts for securing 3D printed components, carefully selected based on expert reviews and customer feedback. Each product is evaluated for durability, ease of use, and value, ensuring you find the perfect fit for your projects. Whether you’re a beginner or a pro, this guide simplifies your choice with clear, concise information. Dive in to find the best insert that meets your needs and boosts your 3D printing success!
1. 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 Brass Threaded Inserts kit is perfect for your 3D printing needs. It includes six common sizes: M2, M2.5, M3, M4, M5, and M6.
These inserts are made from premium brass for durability. They resist oxidation and corrosion. Enjoy a strong grip with their precision design.
Each size is stored in its own compartment for easy access. The kit works with all thermoplastics like PLA and ABS. You can use these inserts for many projects, ensuring long-lasting results.
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Perfect For:
This FFVRVSS Brass Threaded Inserts Kit is perfect for makers, hobbyists, and DIY enthusiasts who want a hassle-free, all-in-one solution for their 3D printing and plastic component projects. If you’re tired of searching for the right parts and tools, this kit offers unbeatable convenience and quality for secure, long-lasting fastenings.
Ready to Purchase?
2. FFVRVSS 300+6Pcs M2 M2.5 M3 M4 M5 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

Say goodbye to scattered parts and hello to effortless assembly! This all-in-one kit brings you the most popular sizes of brass threaded inserts for your projects. It even includes a special tool to make installation a breeze.
Crafted from top-tier brass, these inserts are built to last. They resist rust and bending, giving you super strong connections every time. The clever design ensures they grip tight, so your creations stay put.
With clear labels and separate compartments, finding the right piece is quick and easy. These inserts work with all kinds of plastic, making them perfect for 3D printing and beyond.
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Perfect For:
This all-in-one kit is perfect for 3D printing enthusiasts and DIY lovers who want strong, reliable fastenings. It’s also great for anyone working with plastic components, like automotive shells or laptop casings, who need easy organization and long-lasting results.
Ready to Purchase?
3. Kadrick 520Pcs M2 M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts

Kadrick’s 520-piece threaded insert kit is perfect for 3D printing projects. It includes M2, M3, M4, and M5 sizes, covering all your needs. These brass inserts are easy to use with a soldering iron or ultrasound.
The kit features knurled nuts for stronger grip and comes in a clearly labeled box. Kadrick offers a 24-month warranty, ensuring reliable quality.
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Perfect For:
This Kadrick M2 M3 M4 M5 Threaded Inserts Assortment Kit is perfect for 3D printing enthusiasts and makers who need to add strong, reliable threads to their plastic projects.
Ready to Purchase?
4. Yaocom 300 Pcs M3 Threaded Inserts M3 x D5 x L4 Heat Set Inserts Brass 3D Printing Knurled Metric Nuts for Plastic, 3D Printing Components

The Yaocom 300 Pcs M3 Threaded Inserts are perfect for your 3D printing and other projects. This pack includes 300 inserts, giving you plenty for all your needs. Made from quality brass, they are strong and built to last.
Installation is easy with these brass threaded inserts. They stay securely in place, offering great stability for your designs.
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Perfect For:
This 300-piece set of M3 threaded inserts is perfect for 3D printing enthusiasts and anyone working with plastic components. They offer a secure and stable way to add threads to your projects, making them ideal for electronic items and circuit board fixing.
Ready to Purchase?
5. INDUSTRIAL BOY Heat Set Threaded Insert, Brass Inserts – Heat Set Inserts for 3D Printing, Plastic Parts & Prototyping | Metric Knurled Nuts for Secure Fastening (M5 x 7 OD x 4 L – 50 Pieces)

The INDUSTRIAL BOY Heat Set Threaded Insert is a must-have for your 3D printing and prototyping needs. These brass inserts provide a reliable way to secure components in plastic parts.
They are easy to install with a soldering iron. The inserts fit well in thermoplastics like PLA and ABS. You can count on them for a strong hold.
With their superior grip, these inserts are designed to last. They work great for various applications, including electronics enclosures and robotics. Get the strength you need for your projects.
| Pros | Cons |
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Perfect For:
This product is perfect for anyone who needs strong, secure fastening in 3D printing, plastic parts, or prototyping. Whether you’re working on industrial projects, hobby builds, or mechanical assemblies, these brass inserts offer easy installation and lasting durability.
Ready to Purchase?
6. Opfiue 40 PCS 1/4″ Heat Inserts 1/4″-20x10x8 Brass Threaded Inserts 3D Printing Knurled Nuts, Metric Nuts for 3D Printing and Components

Get ready to supercharge your 3D printing projects with the Opfiue 40 PCS 1/4″ Heat Inserts! This generous supply means you’ll always have what you need for your creative builds.
These inserts are made of tough brass. They are easy to put in. They offer strong connections.
Experience hassle-free installation with these precisely engineered brass inserts, perfect for a wide range of thermoplastics like PLA, ABS, and PETG.
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Perfect For:
Opfiue 40 PCS 1/4″ Heat Inserts are perfect for 3D printing fans and electronics makers. They work well for indoor and outdoor projects.
Ready to Purchase?
7. 100-Pack M3 Threaded Inserts – Heat Set Inserts – M3x4x5 Female Thread Metric Knurled Nuts – Brass Insert Nut Threaded Inserts for Plastic 3D Printing Components Loptop Automotive Shell

Strengthen your plastic projects with these M3 threaded inserts. They create strong, reliable connections for 3D prints and more. Each pack includes 100 brass inserts for all your needs.
These inserts are easy to use and stay firmly in place. Just heat, press, and cool for a secure fit. Perfect for 3D printing, electronics, and more.
Made from high-quality brass, they ensure durability and performance. Ideal for plastic components needing strong threading. A bulk pack for all your projects.
| Pros | Cons |
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Perfect For:
These M3 threaded inserts are perfect for anyone who works with 3D printing, plastic components, or electronic items. Whether you’re reinforcing joints, securing parts, or fixing circuit boards, this bulk pack of 100 brass inserts is easy to use and ensures a strong, reliable connection.
Ready to Purchase?
8. 200Pcs Threaded Inserts Bolt Set 100pcs M3x4x5 Heat Set Insert Brass Nut with 100pcs Bolt for 3D Printed Plastic Parts

Get 200 pieces of threaded inserts and bolts! This set includes 100 brass inserts and 100 stainless steel bolts. It’s perfect for your 3D printed parts.
These brass inserts are tough and won’t rust. The stainless steel bolts are strong and last a long time.
Using them together makes your projects super strong. They won’t come loose easily, giving you lasting quality.
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Perfect For:
This 200-piece threaded insert bolt set is perfect for 3D printing enthusiasts and makers. It’s ideal for securing 3D-printed parts with strong, lasting connections.
Ready to Purchase?
9. Yaocom 100 Pcs M6 Threaded Inserts M6 x D8 x L8 Heat Set Inserts Brass 3D Printing Knurled Metric Nuts for Plastic, 3D Printing Components

The Yaocom 100 Pcs M6 Threaded Inserts are perfect for your 3D printing needs. Made from quality brass, these inserts are strong and durable.
You get 100 pieces, which is enough for many projects. They are easy to install without special tools. These inserts stay securely in place once installed.
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Perfect For:
Yaocom M6 Threaded Inserts are perfect for 3D printing fans, makers, and anyone fixing electronics. They’re great for plastic parts, computer items, and circuit boards.
Ready to Purchase?
10. PATIKIL M10 Threaded Inserts, 12 Pcs Female Metric Brass Knurled Nuts Heat Set Insert for Plastic 3D Printing Components (M10x10x12mm)

The PATIKIL M10 Threaded Inserts are essential for your 3D printing projects. This pack includes 12 pieces of durable brass inserts. Each insert measures M10x10x12mm.
These inserts provide great strength and stability to plastic components. They are easy to install and ensure a secure fit.
Use these threaded inserts to enhance the structural integrity of your designs. They are perfect for reinforcing joints and securing parts in 3D-printed items. Check the size before ordering to ensure a proper fit.
| Pros | Cons |
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Perfect For:
Perfect for 3D printing enthusiasts and professionals, these threaded inserts are ideal for anyone looking to strengthen plastic parts. Whether you’re building prototypes or reinforcing joints, they ensure durability and stability.
Ready to Purchase?
Buying Guide
Choosing the right inserts makes your 3D prints stronger. These small parts ensure lasting durability for your creations.
User Experience:
Imagine finishing a fantastic 3D print, only for it to fall apart with the first use. That’s where threaded inserts come in! They’re like giving your 3D prints a superpower boost, turning them from fragile models into robust, functional items. Many makers find that using these inserts makes assembly much smoother and the final product much more reliable.
Factors to Consider When Buying Inserts:
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Material:
Most brass threaded inserts are a top choice for 3D printing. Brass is strong, resists rust, and holds its shape well when heated. This makes it ideal for creating secure connections in plastic. -
Size and Thread Type:
Inserts come in various sizes, like M2, M3, M4, M5, and M6, for different screw types. Make sure the thread size matches the screws you plan to use. Metric sizes are common for 3D printing projects. -
Quantity and Value:
Kits offer different quantities, from 50 pieces to over 600 pieces. Consider how many projects you have planned. Buying a larger kit can often be more cost-effective for frequent users. -
Installation Method:
Many inserts are heat-set, meaning you use a soldering iron or a heat tool to melt them into the plastic. Some kits even include a special tool to make this process easier. Ensure you have the right tools for hassle-free installation. -
Design and Grip:
Knurled nuts on the inserts provide a stronger grip within the plastic. This design helps prevent the insert from spinning or pulling out under stress. A precision design ensures they sit flush and secure. -
Durability and Resistance:
Look for inserts that resist oxidation and corrosion. High-quality brass ensures your connections remain strong and stable over time. This is crucial for parts that will experience wear and tear. -
Kit Inclusions:
Some kits come with a heat set insert tool or organized compartments for easy storage. These extras can save you time and effort. An all-in-one solution makes starting your projects much simpler. -
Warranty and Support:
Check if the manufacturer offers a warranty, like a 24-month warranty. This shows the company stands by the quality of their product. It’s a good sign of reliable quality.