Features: _x000D_ 1. Made of high quality stainless 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: 100% Brand New _x000D_ Material: Stainless Steel _x000D_ Optional Style: Inner M3*0.5 Outer M5*0.6, Inner M4*0.7 Outer M6.5*0.8, Inner M5*0.8 Outer M8*1.0, Inner M6*1.0Outer M10*1.25, Inner M8*1.25 Outer M12*1.5, Inner M10*1.5 OuterM14*1.5, Inner M12*1.75 Outer M16*1.75, Inner M14*2.0 Outer M18*2.0, Inner M16*2.0 Outer M20*2.0 _x000D_ Weight: Approx. 4-100g / 0.1-3.5oz _x000D_ Length: Approx. _x000D_ Inner M3*0.5 Outer M5*0.6: 4mm / 0.2in _x000D_ Inner M4*0.7 Outer M6.5*0.8: 6mm / 0.2in _x000D_ Inner M5*0.8 Outer M8*1.0: 7mm / 0.3in _x000D_ Inner M6*1.0Outer M10*1.25: 8mm / 0.3in _x000D_ Inner M8*1.25 Outer M12*1.5: 9mm / 0.4in _x000D_ Inner M10*1.5 OuterM14*1.5: 10mm / 0.4in _x000D_ Inner M12*1.75 Outer M16*1.75: 12mm / 0.5in _x000D_ Inner M14*2.0 Outer M18*2.0: 14mm / 0.6in _x000D_ Inner M16*2.0 Outer M20*2.0: 14mm / 0.6in _x000D_ _x000D_ Package List: _x000D_ 10Pcs Thread Inserts