Brass Knurled Threaded Insert Nuts Assortment Box

This 220-piece Brass Knurled Threaded Insert Nuts Assortment provides durable metal threads for plastic and 3D printed parts using heat-set or ultrasonic installation. Covering sizes from M2 to M6, it ensures strong pull-out resistance and reliable fastening for electronics, enclosures, and mechanical assemblies.

Quick Specs

• Total Pieces: 220 pcs
• Size Range: M2 to M6
• Material: High-quality Brass
• Installation: Heat-set / Ultrasonic / Mold-in
• Box Size: Approx. 130 × 67 × 19 mm
• Weight: Approx. 79g

• Overview

  Upgrade your plastic enclosures and 3D printed parts with this 220-piece Brass Knurled Threaded Insert Nuts Assortment. Designed for heat-set and ultrasonic installation, these inserts provide strong, wear-resistant metal threads in thermoplastics for long-lasting, reliable fastening.

  This organized kit includes a wide range of metric sizes from M2 to M6, making it ideal for makers, electronics engineers, 3D printing enthusiasts, and repair professionals.

  Specification

  Technical details for Brass Knurled Threaded Insert Nuts Assortment Box.

  Specification	Details
  Material	High-Quality Brass
  Thread Type	Metric Internal Thread
  Size Range	M2, M2.5, M3, M4, M5, M6
  Size Format	ID × Length × Outside Diameter
  Total Pieces	220 pcs
  Installation Method	Heat-set (Soldering Iron), Ultrasonic Insertion, Injection Molding
  Surface Design	Knurled Outer Body for Enhanced Grip
  Application Material	PLA, ABS, PETG, Nylon, and Other Thermoplastics
  Storage Box Material	Transparent Plastic Compartment Case
  Box Dimensions	Approx. 130mm × 67mm × 19mm

  Whats Included (Box Contents)

  Size (ID × L × OD)	Quantity
  M2 × 3 × 3.5 mm	25 pcs
  M2 × 4 × 3.5 mm	25 pcs
  M2.5 × 3 × 3.5 mm	25 pcs
  M2.5 × 4 × 3.5 mm	25 pcs
  M3 × 3 × 4 mm	25 pcs
  M3 × 4 × 4 mm	25 pcs
  M3 × 5 × 4 mm	25 pcs
  M4 × 4 × 6 mm	25 pcs
  M5 × 5 × 7 mm	10 pcs
  M6 × 6 × 8 mm	10 pcs
  Total Pieces	220 pcs