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Item #:
221572057
100-pack M3 x 4L x 5D Brass Threaded Inserts, Heat Set Knurled Nuts for 3D Printing & Plastics, Female Threaded Brass Inserts
Item #:
221572057
IMP 14
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 2 items left in stock.
Order now and get it around Saturday, August 29
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Crafted from high-quality brass, the threaded inserts provide excellent corrosion resistance and thermal conductivity; Extremely sturdy and durable, not easy to break or deform.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Durability
Made from premium brass, these heat set inserts resist corrosion and wear, ensuring longevity in 3D printed and plastic applications, providing reliable performance and sturdiness under stress.
Easy Installation
Designed for effortless heat insertion, these knurled nuts integrate seamlessly into materials, saving time and enhancing productivity without compromising structural integrity of 3D prints.
Versatile Applications
Ideal for various 3D printing and plastic projects, these female threaded inserts offer flexibility across multiple applications, catering to hobbyists and professionals alike.
Product Details
| Fastener Type | Insert |
| Thread Size | M3-0.5 |
| Exterior Finish | Brass |
| Color | Gold |
| Thread Style | Right Hand |
| Thread Coverage | Fully Threaded |
| Item Weight | 49 g |
| Size Name | M3 x 4L x 5D |
| Outside Diameter | 5 millimeters |
| Material Type | Brass |
| Metal Type | Brass |
| Brand | RoyceMart |
| Manufacturer | RoyceMart |
| Unit Count | 3.53 Ounce |
| Model | GB-CL0201-100 |
| Number Of Items | 100 |
| Part Number | GB-CL0201-100 |
| Material | Brass |
Who Should Buy?
-
3D Printing Enthusiasts
These inserts provide excellent strength and durability, making them ideal for reinforced attachment in 3D printed objects.
-
DIY Hobbyists
Perfect for various plastic projects, this product allows secure fastening and easy installation in custom builds.
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Prototyping Designers
Facilitate quick prototyping with reliable brass inserts that enhance structural integrity of design mock-ups and models.
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Metal Fabrication
Users working with metals may find these brass inserts insufficient for heavy-duty applications or extreme stress conditions.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What materials are these brass inserts compatible with?
Answer: They are compatible with all thermoplastics such as PLA, PETG, ABS, and more. -
Question:
How many inserts come in a package?
Answer: Each package contains 50 brass threaded inserts. -
Question:
What advantages do these inserts offer?
Answer: They provide excellent corrosion resistance, thermal conductivity, and a sturdy connection without the need for additional fasteners.
RoyceMart Nut Inserts Editorial Review
### Editorial Review of the 50-Pack M6 Brass Threaded Inserts The 50-Pack M6 x 6L x 8D Brass Threaded Inserts provide a reliable solution for enhancing the durability and functionality of 3D printed projects and plastic applications. Users have praised the overall quality of these inserts, noting that they are easy to install with the use of a soldering iron, which simplifies the process substantially. The inserts grip securely into the plastic once melted in place, providing a snug and secure mounting point for screws and bolts, leading to greater holding power compared to self-tapping threads. While some users have not, however, noticed a perfect aesthetic finish on every insert, they all adhere to specifications, offering decent thread quality and compatibility with various 3D printing standards, particularly the VORON specs. Dimensional accuracy appears to be a strong point, with many confirming the measured attributes aligning with their expectations. Additionally, the design features, including dual grooves that help resist twist-out during bolt installation and removal, are well-received. These features serve a vital role in ensuring that the inserts remain securely fixed within the material, which is essential for maintaining the integrity of 3D printed parts. Although the serration quality has room for improvement—some users suggest looking for inserts with deeper serrations for increased grip—the current offering's performance remains commendable for most applications. Overall, these brass inserts deliver good value for money at a competitive price point. They stand out for their ease of installation and effectiveness, although potential buyers are encouraged to compare with other options for optimal performance based on specific project needs. #### Pros and Cons **
Customer Reviews & Ratings
12 customers ratings
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5 Star
74%
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4 Star
26%
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3 Star
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Pros
- High quality and easy to install with a soldering iron.
- Secure grip on 3D printed materials.
- Good dimensional accuracy and adherence to specs.
- Features designed to resist twist-out and enhance hold.
- Offers decent value for the price.
Cons
- Some inserts may not have a polished finish.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Important information
- 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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IMP 14
Order now and get it around Saturday, August 29
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 2 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Includes 50 high-quality M6 x 6L x 8D brass threaded inserts.
- Designed for easy embedding into various plastic materials.
- Excellent corrosion resistance and thermal conductivity.
- Sturdy and durable; resistant to breaking or deformation.
- Compatible with all thermoplastics including PLA, PETG, and ABS.
- Ideal for applications in 3D printing, automotive, and electronics.
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