Features: _x000D_ 1. Made of high quality carobn steel, durable to use. _x000D_ 2. Large contact area, it can bear strong tension. _x000D_ 3. Strong resistance to vibration which can prevent loosening. _x000D_ 4. Easy and convenient to install, quickly and simply. _x000D_ 5. Widely used in the automotive industry, rail vehicle industry, shipbuilding industry, household appliances, construction machinery, business machinery, electronic products, engineering plastics, advanced furniture, aluminum die-casting and other industries. _x000D_ 6. Available in nine styles for your choice. _x000D_ _x000D_ Specification: _x000D_ Condition: Brand _x000D_ Material: Carbon Steel_x000D_ Optional Style: Inner M2x0.4 Outer M4.5x0.5, Inner M4x0.7 Outer M6.5x0.75, Inner M3x0.5 Outer M5x0.5, Inner M5x0.8 Outer M8x1.0, Inner M6x1.0 Outer M9x1.0, Inner M6x1.0 Outer M10x1.5, Inner M8x1.25 Outer M12x1.5, Inner M10x1.5 Outer M14x1.5, Inner M12x1.75 Outer M16x1.5 _x000D_ Weight: Approx. 9-229g / 0.3-8.1oz _x000D_ Length: Approx. _x000D_ Inner M2x0.4 Outer M4.5x0.5: 6mm / 0.2in _x000D_ Inner M4x0.7 Outer M6.5x0.75: 8mm / 0.3in _x000D_ Inner M3x0.5 Outer M5x0.5: 6mm / 0.2in _x000D_ Inner M5x0.8 Outer M8x1.0: 10mm / 0.4in _x000D_ Inner M6x1.0 Outer M9x1.0: 12mm / 0.5in _x000D_ Inner M6x1.0 Outer M10x1.5: 14mm / 0.6in _x000D_ Inner M8x1.25 Outer M12x1.5: 15mm / 0.6in _x000D_ Inner M10x1.5 Outer M14x1.5: 18mm / 0.7in _x000D_ Inner M12x1.75 Outer M16x1.5: 22mm / 0.9in _x000D_ _x000D_ Package List: _x000D_ 20Pcs Thread Inserts 1Made of high quality carobn steel, durable to use. 2Large contact area, it can bear strong tension. 3Strong resistance to vibration which can prevent loosening. 4Easy and convenient to install, quickly and simply. 5Widely used in the automotive industry, rail vehicle industry, shipbuilding industry, household appliances, construction machinery, business machinery, electronic products, engineering plastics, advanced furniture, aluminum die-casting and other industri