Features: Premium 60Piece Threaded Inserts set with 7Sizes (3mm-12mm) features stainless steel construction for enhanced wear resistance, vibrations absorption, and uniform load distribution in low strength materials. The locking wire inserts employ spring coil design with deeply threads to prevent loosening under vibrations, outperforming standard fasteners while remaining reusable for repeated thread repair applications. Ideal for mechanics, enthusiasts, and maintenance professional needing reliability thread reinforcement in automotive, machinery, or electronic equipment repairs. Perfect for restoring threads in engine blocks, industrial equipment, or household appliances where vibrations resistant fastening and repeated screw adjustments are required. Each set includes 60pcs corrosions resistant stainless steel inserts with standardized dimensions, offering complete thread repair coverage from small electronics to heavy duty applications. Specifications: Component: Stainless Steel Multiple Size as Picture Show; 1Set/60pcs includes 5Pcs 12mm, 5Pcs 10mm,10Pcs 8mm,10Pcs 6mm,10Pcs 5mm,10Pcs 4mm,10Pcs 3mm; Package Includes: 1set/60pcs Steel Wire Screw Insert note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.