80Pcs 1/4" Heat-Set Threaded Inserts 1/4"-20mm Brass Knurled UNC Nuts for Plastic 3D Printing Injection Molding Press Thread Nut

80pcs Insert Nuts with 1/4"-20 Internal Thread, 5/6/8/10mm Length, 8mm Outer Diameter

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(Common Soldering Iron), Not Require Special Tool for Installation