Newdeli 100pcs M4 Heat Set Inserts M4x6x6 Threaded Inserts for Plastic and 3D Printing Components Brass Metric Knurled Nuts Kit

Newdeli 100pcs M4 Heat Set Inserts M4x6x6 Threaded Inserts for Plastic and 3D Printing Components Brass Metric Knurled Nuts Kit

• 【Threaded Inserts】Crisp, high-accuracy threading prevents slippage, while 45° knurling boosts torque resistance and pull-out strength for rock-solid fastening.
• 【Premium Heat Set Insert】 – Machined from top-grade brass for superior heat transfer, corrosion resistance, and long-term durability; withstands temperatures up to 572°F / 300°C without cracking or deforming.
• 【Effortless Installation】Installs easily by heating, ultrasonic insertion, or during molding; even a basic soldering iron can seat these inserts cleanly into 3D-printed parts.
• 【Compatibility】Ideal for all thermoplastics (PLA, PETG, ABS, PP, PPS, etc.) and electronics applications—from 3D prints and injection-molded components to automotive housings and laptop shells.
• 【Ready-to-Use】Supplied in a sturdy, compartmentalized storage box to keep sizes separated, fully tested for quality— so you can grab the right insert and get straight to work.