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40pcs 1/4' Threaded Inserts - UNC Knurled Nuts, 1/4'-20x8x8 Brass Heat Set Insert for 3D Printing Components and Plastic Parts

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$9.28

$ 3 .99 $3.99

In Stock

About this item

  • Superior-Quality Brass Heat Set Insert for the 3D Printing Applications and All Thermoplastics
  • High Tightening Hold, Stable Connection and not Prone to Strip, Practical Knurled Thread Insert Nuts
  • Long-Lasting, High Thermal Conductivity and Corrosion-Resistant, Suitable for Indoor or Outdoor Applications
  • Great Compatibility with Variety of Plastics (PLA, ABS, PPS, PP, PETG)
  • Easy Application, Insert by Ultrasonic or Heat Embedding, Not Require Any Special Tools for Installation
  • Packaging with Clear PE Bag and Recyclable PP Box
  • 40pcs Insert Nuts with 1/4"-20 Internal Thread, 8mm Length, 8mm Outer Diameter



Product Description

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Threaded Inserts - Knurled Nuts, M3 M4 M5 1/4"-20 Brass Heat Set Insert for 3D Printing Component and Plastic Parts

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Our Brass Heat Set Inserts are made of high-quality brass, these threaded inserts have optimal corrosion resistance, thermal conductivity and high resistance to breaking or deformation. The knurled nuts were clearly cutted, have accuracy dimension in thread size, with bi-directionally angled threads, have a balanced high tightening torque, ensuring a stable connection, resisting torque and preventing pull-out.

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Great for all thermoplastics, including PLA, ABS, PPS, PP, PETG and more, widely applicate in 3D printers, automotive plastic shells, electrical molding machines and laptop molds. These inserts can be easiy installed with a common soldering iron. Once plastic of the part around the brass sleeve cools and hardens, the threaded sleeve is firmly anchored. Applicated to 3D printing projects, various prototyping projects and most hobby-grade projects.

  • WARNING: Not Suitable for Person Under 5 Years, Due to Small Parts!

Wade Berlin
Reviewed in the United States on March 4, 2025
Excellent product, worked great for me.
trigeek
Reviewed in the United States on February 15, 2025
Top notch quality inserts for a great price.
Luiblonc
Reviewed in the United States on January 24, 2025
You need this, that’s all I can tell you!! Especially for 3D printing!!
Steve
Reviewed in the United States on September 29, 2024
Making precise door and water tite access panel alignment on surf boards or aircraft easy. Light weight an corrosion resistant for fiberglass and carbon structures!
Mittenz
Reviewed in the United States on September 21, 2024
Love these inserts for both my PLA and ABS projects. Once their set in place there is no chance of them coming out! I've broken both PLA and ABS mounts way before the inserts budged.
Adventure Guy
Reviewed in the United States on August 23, 2024
Used these for a 3D printed mount for my Starlink mini so I could mount it to a standard camera tripod. Set it using my soldering iron. Very strong and not worried about it coming loose.
Scott F.
Reviewed in the United States on November 5, 2024
I used these inserts on parts of my Jurassic themed home Halloween display. I used them to mount the head and arms to a t-slot extruded frame. The inserts held up to some intense movement from a pneumatic actuator.
Allgood Automation
Reviewed in the United States on October 1, 2024
They need to sell an installation Screw insert that fits a soldering iron tip.
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