300-Piece Heat-Set Threaded Insert Assortment

Threaded Brass Inserts for 3D Printing Projects

300pcs Assortment Kit – 50pcs of Each Size (M2–M6)

Strengthen and extend the life of your 3D printed parts with this 300-piece Threaded Brass Insert assortment, designed to deliver strong, reliable, and professional-grade threaded connections. This comprehensive kit includes 50 inserts of each size, making it ideal for makers, engineers, and professionals working across a wide range of 3D printing applications.

A durable alternative to captive nuts, these brass inserts melt securely into printed parts, improving load distribution and reducing wear from repeated assembly and disassembly.

Key Features

High-Quality Brass Construction

• Durable Brass Material
  Manufactured from high-quality brass for dependable performance and long-lasting threaded connections.
• Corrosion Resistant
  Brass naturally resists corrosion, making these inserts suitable for long-term use in both indoor and outdoor environments.

Strong Bond Design

• Tapered Shape with Fins
  The tapered profile and integrated fins allow the insert to melt securely into place using a soldering iron, helping to prevent pull-out.
• Enhanced Stability
  Designed to distribute stress evenly, improving the structural integrity of 3D printed components.

Versatile and Practical Solution

• Professional Alternative to Captive Nuts
  Delivers a cleaner, more reliable threaded connection for 3D printed assemblies.
• Time and Cost Efficient
  Allows individual parts to be reprinted without replacing hardware, reducing material waste and rework.

Easy Installation

• Simple Melt-In Method
  Insert into slightly undersized printed holes and melt into place using a soldering iron.
• Quick Setup
  Straightforward installation helps streamline assembly and prototyping workflows.

Assortment Size Breakdown (300pcs Total)

This kit includes 50 pieces of each size, covering a broad range of common 3D printing requirements:

• M2 – 3mm Length, 3.5mm Outer Diameter
• M2.5 – 3.5mm Length, 3.5mm Outer Diameter
• M3 – 4mm Length, 4.5mm Outer Diameter
• M4 – 4mm Length, 6mm Outer Diameter
• M5 – 5mm Length, 7mm Outer Diameter
• M6 – 5mm Length, 8mm Outer Diameter

Each size is engineered for a precise fit, ensuring dependable threading in compatible printed holes.

Product Specifications

Ideal Applications

3D Printing & DIY

• Custom 3D printed assemblies
• Prototyping and functional parts
• Electronics enclosures and housings

Industrial & Engineering Use

• Machinery components
• Automotive-related projects
• Structural and experimental assemblies

Crafting & Modeling

• Model making and precision builds
• Jewelry projects requiring threaded connections

Why Choose This 300pcs Assortment?

• Covers multiple thread sizes in one convenient kit
• Durable brass construction for long-term performance
• Strong melt-in bond reduces pull-out risk
• Professional, clean alternative to captive nuts
• Ideal for repeated assembly and disassembly

Package Includes

• 300 × Threaded Brass Inserts Total

  • 50 × M2
  • 50 × M2.5
  • 50 × M3
  • 50 × M4
  • 50 × M5
  • 50 × M6

Upgrade Your 3D Printing Projects with Confidence

This 300-piece Threaded Brass Insert assortment provides the strength, versatility, and reliability needed for high-quality 3D printed assemblies. Whether you’re prototyping, repairing, or building production-ready parts, this kit delivers consistent, professional results every time.