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QSJ 12pcs M2.5 M3 M4 Threaded Inserts with 3 Size Soldering Iron Tips Heat Set Insert Tip Brass Nut for 3D Printed Plastic Parts

✅ In stock ⭐ Lowest price we've tracked
C
Grade
🙂 Fair Price
53.56/100
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.
$4.97
Listed $5.97
Save $1.00 17% OFF
Analysis Confidence 90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 10:36 PM · 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.
  • 💰At 10% off its standard going rate, this offer delivers clear value for the money.
  • 🏷️A 17% cut from the official retail price adds further appeal.
  • 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 11.16/28
Recent Value 7.81/22
Market Standing 10.59/20
Deal Strength 20/20
Momentum 4/10

📝 Product Overview

🏪 Sold by Tenyoo-US
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

【Package】: Our soldering iron tip kit includes three different sizes - M2.5, M3, and M4 - along with the corresponding threaded inserts M2.5x4x3.5(4Pcs), M3x4x5(4Pcs), M4x8.1x6.3(4Pcs).
【High-Quality Material】: Made from durable brass, our set offers excellent thermal conductivity and resistance to corrosion. The brass material ensures longevity, allowing you to use these tools repeatedly without compromising their performance.
【Easy to Use】: Simply select the appropriate size of the insert tip, attach it to your soldering iron, heat it up, position the insert in your 3D-printed part, and press the tip onto the insert until it embeds securely. This straightforward process allows you to achieve professional-looking results with ease.
【Easy to store】: The compact packaging also makes it easy to store the kit when not in use, saving you space in your workshop or toolbox.
【Versatile Applications】: Whether you're working on DIY projects, prototyping, or repairs, our soldering iron tip set is a valuable tool. It enables you to create secure connections and attachments with embedded inserts, making it ideal for various applications in the world of plastic fabrication.

⚙️ Specifications

Material
qsj
Fastener Type
Insert
Thread Size
#8-32
Exterior Finish
Brass
Metal Type
Brass
Brand
QSJ
Thread Type
Iso Metric
Inside Thread Size
M2.5, M3, M4
Thread Style
Right Hand
Thread Coverage
Partially Threaded
Thread Class
Class 2A
C
$4.97
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