Steel Wire Thread Insert Combination Tool Set M3/M4 x 2D – Thread Inserts Repair Installation Kit for Restoring Damaged Wires in Steel(M3 x 2D)

Stainless steel coiled wire helical screw thread inserts designed for automotive and machinery applications. These M3 x 2D/M4 x 2D threaded inserts enhance connection strength in low-strength materials like aluminum and magnesium, avoiding thread damage and improving wear resistance. Suitable for parts requiring frequent disassembly, they distribute load evenly and absorb vibration to reduce loosening.Installation is simple: Drill, tap, and insert using the provided tool. The coiled wire design allows easy insertion even in broken threads, restoring functionality without workpiece replacement. Suitable for automotive engines, machinery, and electronic equipment where reliable threaded connections are important.Specifications:Material: Stainless steel;Carbon steelColor:Purple and SilverSize: M3(inner diameter) x 2D(installed length=2*3mm=6mm)Size: M4(inner diameter) x 2D(installed length=2*4mm=8mm)Quantity: 50pcsWeight: 110g/120g(approx.)M3 x 2D Package Includes:50 x Threaded Inserts1 x Installation Tool (M3)1 x Dedicated Tap (ST3)1 x Tang Breaker1 x Drill BitM4 x 2D Package Includes:50 x Threaded Inserts1 x Installation Tool (M4)1 x Dedicated Tap (ST4)1 x Tang Breaker1 x Drill BitNote:1. The real color of the item may be slightly different from the pictures shown on the website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data. Thank for your understanding.3. 1cm=0.39''.

• Durability Enhancement: Crafted from stainless steel to avoid thread stripping in soft materials like aluminum ensuring long lasting connection integrity
• Lower Vibration: Unique helical coil design evenly distributes load and absorbs shocks reducing loosening risks in high vibration applications
• Wear Protection: Install in frequently disassembled parts to significantly increase thread service life and withstand repeated use without degradation
• Simplified Maintenance: Includes installation tool and tap for easy broken thread repair saving time and costs on component replacement
• Complete Kit: Contains 50 M3x6mm inserts plus tap and installation tools providing everything needed for professional results