100Pcs Threaded Insert Self-Clinching Nut Brass Internal Thread Knurled M4

Features: *100PCS Threaded Insert Self-clinching Nut Brass Internal Thread Knurled For 3D Printer Hardware Hot Melt Inset Nuts *Spiral knurled nuts have superior strength which ensures high balanced tightening and loosening torque and large pulling force Tested by experience it can withstand up to 200kg pulling force. *Brass Internal Thread Drive Nuts are made of high quality brass which features high hardness corrosion resistance durability and stability. *M4 nuts are packaged separately - You can purchase the suitable models according to your requirement. The small plastic box helps you to store and transport these nuts to avoid mess. *These insert nuts can be inserted into the conical hole by ultrasonic or heat or inserted during injection. With a normal soldering iron you can easily insert them into 3D printed holes. *Threaded nuts are designed for thermoplastics. They can be used for injection molding for solid fixing PCB mounting electronics and most plastic materials such as PLA PETG ABS PP etc. Specifications: Material: Brass Color :Gold Metal :Type Brass Size(optional):M4*4*6 M4*6*6 M4*8*6 (Inner diameter * length* outer diameter) Package Included: 100pcs Threaded Insert