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400Pcs Metric Heat Set Insert, M2 M2.5 M3 M4 M5 M6 Female Thread Knurled Nuts Assortment Kit, Brass Threaded Inserts for Plastic and 3D Printing Components (Threaded Inserts Ket)

✅ In stock ⭐ Lowest price we've tracked 📉 Price recently dropped
C
Grade
🙂 Fair Price
51.99/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$14.97
Listed $15.98
Save $1.01 6% OFF
Analysis Confidence 55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 21, 2026 4:06 AM · Prices & availability subject to change

Is This a Good Price on Amazon?

🙂 Fair Price
  • 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
  • 💰The price is modestly below what this product ordinarily sells for.
  • 🏷️The listed retail price is trimmed by 6% at checkout.
  • 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
  • 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.

How We Scored This Deal

Price Competitiveness 4.24/28
Recent Value 3.9/22
Market Standing 13.85/20
Deal Strength 20/20
Momentum 10/10

📝 Product Overview

🏪 Sold by E-Lifes
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

【Package Content】- The package includes 400 high-quality metric threaded inserts for plastic heat-setting. With a large quantity available, it meets the needs for connecting numerous 3D printing accessories. The threaded brass inserts are approximately sized at M2 M2.5 M3 M4 M5 M6. Please ensure the nut's size matches your plastic parts effectively.
【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.
【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.
【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.
【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.

⚙️ Specifications

Material
Brass
Fastener Type
Insert
Thread Size
M2 M2.5 M3 M4 M5 M6
Exterior Finish
Brass
Color
golden
Thread Type
Iso Metric
Inside Thread Size
M2 M2.5 M3 M4 M5 M6
Thread Style
Right Hand
Thread Coverage
Fully Threaded
Thread Class
Fine
Maximum Shear Strength
[HIGH]

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