Inserts Nut for Plastics of 2025
Best Choice1
HapricHapric 307 Threaded Inserts for Plastic Set, 300 M2-M6 Heat Set Insert with 7 M2-M6 Soldering Iron Tips, Brass Heat Set Insert Tool Metric Knurled Nuts Assortment Kit for Plastic and 3D Printing
Main highlights- Wide Range of Applications: Metric knurled nut combination sets can be embedded in a wide range of plastics. Whether you're reinforcing 3D printed parts or assembling plastic components, this soldering adapter is seamlessly compatible with soldering irons across a wide range of tips. They have good thermal conductivity. Can be more effectively used in 3D injection molding and notebook components, etc.
- Matching Heat-set Insert Tips: In addition to threaded inserts, we also have soldering tips that help set the threaded insert into the plastic by heating the tip without touching the sides of the part, increasing the strength of the part without causing the Sticking after injection molding and destroying the project.
- Easy to Use: The heat set insert set contains threaded inserts and heat set insert tips, corresponding sizes, and can be heated and embedded in plastics such as 3D printers by directly screwing the soldering iron tip and iron sleeve and inserts into the connection. It is very convenient and provides multiple sizes and quantities for easy replacement and multi-purpose use in life and work.
- Durable Brass Material: Thread inserts and soldering iron tips are made of brass, sturdy and durable, can be used indoors and outdoors without cracking, and can be used for a long time.
- Divided Boxes with Labels: These heat set insert tips set comes in a labeled divider box with all components clearly and orderly labeled on the inner and outer lids for easy storage and finding, avoiding parts clutter, And comes with bubble wrap to ensure the box won't break.
9.7Exceptional
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Value for Money2
Generic4-40 6-32 8-32 (160pcs) Standard Threaded Inserts for Plastic Heat Set English Insert Knurled Nut Insert Threaded Brass Insert Assortment Kit for 3D Printing Injection Molding Thread Nuts
Main highlights- Wide Range of Applications – Compatible with all thermoplastics, including PLA, PETG, ABS, PPS, and PP, these inserts are ideal for a variety of uses. Whether you’re working on 3D printed models, injection-molded parts, automotive components, or electronics, these inserts deliver reliable and lasting performance.
- Precision-Engineered Design – With precision crafted threads, these inserts ensure a secure fit and prevent slippage during use. The 45-degree knurl pattern enhances their grip, providing greater torque resistance and tensile strength for a more secure connection. The inserts also feature guide elements, simplifying the installation process by eliminating the need for countersinking.
- Organized and Convenient Storage – Packaged in a durable, compartmentalized box, these inserts are neatly organized to prevent mixing during transport. Each compartment is clearly labeled, making it easy to find the specific insert you need, helping you work more efficiently.
- Effortless Installation – Designed for versatility, these brass inserts can be installed using heat. Perfect for 3D printing projects, electronic assemblies, and circuit boards, they can be easily embedded into 3D printed parts with a regular soldering iron.
- Durable Brass Threaded Inserts – Expertly crafted from premium brass, these inserts provide exceptional heat conductivity, superior corrosion resistance, and outstanding long-term durability. Designed to endure extreme temperatures exceeding 300°C, they offer excellent resistance to twisting and pulling forces, ensuring a secure and reliable fit in demanding applications.
9.5Excellent
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3
KtehloyKtehloy 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
Main highlights- 【Wide Application】 - These inserts are designed for use with all thermoplastics, including materials like PLA, PETG, ABS, PPS, PP, and others. Whether installing them in 3D printed objects, injection-molded plastic parts, automotive plastic casings, or laptop shells, these inserts offer reliable and durable solutions.
- 【Precision Craftsmanship】- High-precision and clear threading ensures stability and reliability, preventing thread slippage during rotation. The 45-degree angled knurling significantly enhances torque resistance and tensile strength, ensuring a stronger fastening. The embedded nuts feature guiding elements, eliminating the need for countersinking or recessing, making your work more convenient and efficient.
- 【High-Quality Threaded Inserts】- Crafted from top-tier brass materials, these threaded inserts boast outstanding thermal conductivity, corrosion resistance, and durability. They exhibit remarkable resistance against breakage and deformation. Withstanding temperatures exceeding 300°C / 572°F, they easily endure the harsh heat generated during plastic thermal shaping processes.
- 【Easy to Use】- Brass threaded inserts can be installed into components of a 3D printer through heating or ultrasonic methods, or molded during the injection process. They are also suitable for circuit board assembly and the electronics field. With a common soldering iron, you can easily place them into the holes of 3D prints.
- 【Convenient Use and Storage】- Stored in reinforced compartmentalized boxes, all components are segregated to prevent mixing during transportation. Corresponding labels and compartments for the threaded inserts help you quickly find the desired type, significantly boosting your work efficiency.
9.4Excellent
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4
Kadrick15% OffKadrick 520Pcs M2 M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts
Main highlights- Suitable for 3D printing: Brass threaded inserts, which can be embedded into plastic materials using the heat from a soldering iron or ultrasound, are the optimal solution for adding threads in 3D printing.
- Secure fixation: Our brass threaded inserts are made of high-quality brass and undergo precision processing, ensuring excellent heat conduction and corrosion resistance. Through testing, we have found that compared to straight-threaded inserts, the knurled threaded inserts provide stronger gripping strength and can withstand high levels of tensile force.
- Common specifications: We have created this set of inserts using M2 M3 M4 M5 sizes based on the most commonly used specifications by 3D printing enthusiasts. The heights range from 3mm to 12mm. We hope you will like it.
- Clear labeling: Each specification has its own independent compartment in the plastic box, and we have attached labels with detailed annotations for key data, making it convenient to use.
- Brand guarantee: Kadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us.
9.3Excellent
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5
KOOPATZ25 Pcs 1/4-20 Jack Nut Threaded Insert Petal Nuts Nutserts Jacknut Srew Anchor Spider Rivnut Blind for Plastic Polywood Pressboard Hardboard Steel Zinc Plate
Main highlights- Quality Assured: KOOPATZ jack nut has undergone testing to ensure a trouble-free installation
- Premium Material: Made from high standard low carbon steel, robust and reliable
- Precise Prodution: Precise dimensions and threads, perfectly fit the hole and bolt
- Excellent Finishing: Zinc plated, corrosion resistant, long service life
- Easy to Install: A set of tool will give you a easy installation manually or electrically
9.2Excellent
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6
Micro TradersMicro Traders 20x Vehicle Screw Grommets Insert Expanding Nuts White Plastic Mounting Clip Retainers Universal for Car Boat Fits 7x7mm Hole
Main highlights- Universal for most car, boat, caravan and other vehicles.
- The square head hole for a screw diameter of 3mm.
- Please kindly confirm the fitment size before ordering.
- Part number: VP 275
- Applicable outer hole size is about 7x7mm.
- 20 Pcs whtie plastic screw grommets / insert expanding nuts.
9.1Excellent
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7
OEMONEG200 Pcs Mixed Auto Car Nylon License Plate Screw Inserts Nylon Grommet Nut Assortment for Automotive Body Bumper Fender Liner Grille Headlamp License Plate Door Panel Trim Nuts
Why we love it
Durable nylon construction.
Versatile for multiple car parts.
Easy installation process.
8.8Very Good
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8
QSJ440Pcs Threaded Inserts Bolt Set M2.5 M3 Heat Set Insert Brass Nut with Bolt for 3D Printed Plastic Parts
Main highlights- 【Package】 440pcs set with 140 M2.5x4x3.5 threaded inserts, 140 M2.5x5 bolts, 80 M3x4x5 threaded inserts, 80 M3x5 bolts, and M2.5/M3 soldering iron tips for precise assembly.
- 【Material】 Our threaded inserts are crafted from durable brass, offering excellent resistance to corrosion and wear, while the bolts are made from high-quality stainless steel, providing superior strength and longevity.
- 【Ideal for 3D Printing Applications】 Perfectly suited for securing 3D-printed parts, this set allows for strong and secure connections that maintain the integrity of your projects. Whether you're assembling intricate models or functional prototypes, these fasteners provide the stability and precision required.
- 【Enhanced Performance with Combined Use】 Using the inserts and bolts together maximizes the holding power and structural integrity of your assemblies. The threaded engagement between the brass inserts and stainless steel bolts creates a robust connection, reducing the risk of loosening over time and ensuring long-lasting durability.
- 【Abundant Quantity】 With 440 pieces in total, this set provides an ample supply of fasteners for even the most extensive projects. The generous quantity ensures you always have the right fastener on hand when you need it.
8.7Very Good
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9
SQXBKSQXBK 50PCS 8mm/0.31inch Hardware Hinge Screw Embedded Part Hinge Dowel Insert Plastic Nut Connector White Nylon Expansion Plug
Main highlights- Package includes 50 plastic pins, 50 screws.
- M4 screw hole, 8x8.5mm/0.31x0.33inch
- Hinged pre-built parts are used in a position where the holes are punched 8mm in diameter and 10mm in depth.
- Hinge screws pre-embedded, effective protection of the board wear level, installation of strong/solid.
- Hardware hinges screws pre-embedded parts M4x8 plastic nuts connectors
8.4Good
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10
SoSo-BanTian198940pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts
Main highlights- Superior-Quality Brass Heat Set Insert for the 3D Printing Applications and All Thermoplastics
- Packaging with Clear PE Bag and Recyclable PP Box
- Long-Lasting, High Thermal Conductivity and Corrosion-Resistant, Suitable for Indoor or Outdoor Applications
- High Tightening Hold, Stable Connection and not Prone to Strip, Practical Knurled Thread Insert Nuts
- Great Compatibility with Variety of Plastics (PLA, ABS, PPS, PP, PETG)
- Easy Application, Insert by Ultrasonic or Heat Embedding(Common Soldering Iron), Not Require Special Tool for Installation
- 40pcs Insert Nuts with 1/4"-20 Internal Thread, 8mm Length, 8mm Outer Diameter
8.1Good
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