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Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts, Female Thread Inserts, Knurled Insert Nuts for 3D Printing Plastic, M3 x 4mm x 5mm
The Qrity Threaded Insert Nuts offer non-rusting, anti-corrosion features and superior hold for varied applications.
Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts, Female Thread Inserts, Knurled Insert Nuts for 3D Printing Plastic, M3 x 4mm x 5mm
Item #: 87599478

Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts, Female Thread Inserts, Knurled Insert Nuts for 3D Printing Plastic, M3 x 4mm x 5mm

Item #: 87599478

USD 15

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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The Qrity Threaded Insert Nuts offer non-rusting, anti-corrosion features and superior hold for varied applications.
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What Stands Out

Durable Brass Material
Constructed from high-quality brass, these inserts resist wear and corrosion, ensuring a long-lasting performance in your 3D printing projects.
Versatile Compatibility
Designed for M3 applications, these knurled nuts fit seamlessly into various plastics, providing a stable and secure fastening solution for diverse 3D printed items.
User-Friendly Design
The knurled surface allows for easy installation and removal, enhancing user experience and efficiency, making these inserts ideal for both hobbyists and professionals.

Product Details

Shop Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts, Female Thread Inserts, Knurled Insert Nuts for 3D Printing Plastic, M3 x 4mm x 5mm online at a best price in Puerto Rico. B0CPNLRTQL
Fastener TypeKnurling
Thread SizeM 3
Exterior FinishBrass
Thread TypeIso Metric
Inside Thread SizeM 3
Thread StyleInternal, Metric
Thread ClassClass 2B
Compatible Groove Diameter3 millimeters
Drive StyleSpline
Grade Ratingcommercial
Material TypeBrass
Metal TypeBrass
Finish TypesBrass
BrandQRITY
ManufacturerQrity
Part NumberTLM01-M3*4*5
Size NameM3 x 4 x 5
Item Diameter3 millimeters
Number of Pieces100
MaterialBrass
Item Weight0.5 lbs (230 grams)

Who Should Buy?

Suitable For
  • 3D Printing Enthusiasts

    Ideal for individuals who frequently use 3D printing to securely fasten components in plastic models.

  • DIY Project Makers

    Perfect for hobbyists working on various DIY projects requiring reliable threaded insert solutions.

  • Small Scale Manufacturers

    Suitable for small businesses producing plastic parts, ensuring durable backings for threaded connections in products.

Not Suitable For
  • Heavy Duty Users

    Not suitable for applications needing robust metal parts due to lower strength compared to steel inserts.

Product Description

Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts, Female Thread Inserts, Knurled Insert Nuts for 3D Printing Plastic, M3 x 4mm x 5mm

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are brass inserts used for in 3D printing?

    Answer: Brass inserts, like the Qrity 100 Pcs, are crucial for creating strong threaded connections in 3D printed plastic objects. These inserts allow you to incorporate screws and bolts into your designs, leading to enhanced durability and stability. In projects like assembling electronics or parts that undergo mechanical stress, using brass inserts effectively ensures that the threads don't wear out quickly, preserving the integrity of your assembly.
  • Question: How do you install threaded brass inserts in 3D printed objects?

    Answer: Installing threaded brass inserts involves heating them and inserting them into pre-drilled holes in your 3D printed piece. The heat causes the plastic to soften, allowing the insert to sit flush with the surface. This method is particularly useful for assembling components securely, especially in items like remote controls or mechanical parts. It ensures a robust connection, making disassembly and reassembly straightforward when necessary.
  • Question: What size are the brass inserts provided in this product?

    Answer: The Qrity package features M3-sized brass inserts, specifically measuring 4mm in length and 5mm in diameter. This size is ideal for various 3D printing projects that require a medium-sized insert for stability. These dimensions make them versatile for small to medium-scale 3D printed applications, such as prototypes or hobby projects where weight and space are critical considerations.
  • Question: Can these brass knurled nuts be used in applications other than 3D printing?

    Answer: Yes, while primarily designed for 3D printing, these brass knurled nuts are also suitable for countless applications that require a reliable fastening method. Their design makes them perfect for use in model building, electronic casings, and even furniture assembly where metallic fasteners can improve strength. These inserts' versatility extends beyond just printing projects, making them valuable for DIY enthusiasts and professionals alike.
  • Question: What materials can I use with these threaded inserts?

    Answer: The Qrity brass inserts work effectively with various thermoplastics commonly used in 3D printing, such as PLA, ABS, and PETG. However, they can also be beneficial in composite materials like nylon mixed filaments. By ensuring compatibility with these materials, you can enhance the mechanical properties of your printed projects, making them more durable for functions like mechanical assemblies or outdoor usage.
  • Question: Are these inserts resistant to corrosion?

    Answer: Brass as a material offers good corrosion resistance, which is one of the primary benefits of using these inserts in various environments. This resistance makes them especially useful in projects exposed to moisture or fluctuating temperatures. Whether in a humid environment or when creating devices that might come into contact with water, utilizing these brass inserts will help maintain the integrity of your projects over time.
  • Question: How many inserts are included in the package?

    Answer: The Qrity set includes a total of 100 brass inserts, providing you with ample supply for multiple projects. This quantity is particularly advantageous for hobbyists and professionals planning larger builds, where many connections might be required. Having a sufficient stock ensures that you can experiment with different designs and modifications without running out of essential components.
  • Question: What is the advantage of using knurled nuts?

    Answer: Knurled nuts offer a significant advantage due to their texture, which enhances grip and prevents slipping during assembly. This feature is valuable during installation when the nut needs to be firmly held in place, especially under mechanical stress. For example, when creating products like robotic arms or intricate models, knurled nuts ensure a secure fit, reducing the chances of loosening over time from vibrations or movement.
  • Question: What tools do I need to use these brass threaded inserts?

    Answer: To utilize the Qrity brass inserts, you'll typically need a soldering iron or another heating tool for installation. Additionally, a drill with the correct sized bit for M3 threads is essential for preparing the holes in your printed material. These simple tools enable you to effortlessly insert the nuts, making it an accessible process for both beginners and experienced 3D printing enthusiasts alike.
  • Question: Where can I buy Qrity 100 Pcs Brass Insert in Puerto Rico?

    Answer: You can conveniently purchase the Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts from Ubuy. Ubuy offers a straightforward shopping experience where you can find this product and have it delivered to your location in Puerto Rico. Their platform provides easy navigation and various options to explore related products you might find useful for your 3D printing projects.

QRITY Nut Inserts Editorial Review

Qrity 100 Pcs Brass Insert, Threaded Inserts Brass Knurled Nuts, Female Thread Inserts, Knurled Insert Nuts for 3D Printing Plastic, M3 x 4mm x 5mm includes 100 high-quality brass knurling fasteners that are ideal for applications requiring durable internal threads. The M3 size and commercial-grade brass ensure reliability and longevity in various projects, especially in 3D printing. Users have appreciated their ease of installation and the strong hold they provide in plastic materials, making them a favorite for DIY enthusiasts and professionals alike. This product stands out due to its well-engineered design, allowing for consistent performance across multiple uses.

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Pros

  • Durable brass construction for longevity
  • Easy to install in 3D printed materials
  • consistent performance across multiple uses
  • 100 pieces offer great value
  • Commercial grade ensures reliability

Cons

  • May require a specific installation tool for best results

Platform Trust & Buyer Confidence

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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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