Features [Good stability] Strong anti-vibration, can prevent loosening. [High-quality material] This stainless steel thread insert is made of high-quality carbene steel, which is durable. [Scope of application] Widely used in the automotive industry, rail vehicle industry, shipbuilding industry, household appliances, engineering machinery, commercial machinery, electronic products, engineering plastics, high-end furniture, aluminum die-casting and other industries [Strong bearing capacity] The self-tapping thread insert has a large contact area and can withstand strong tension. [Easy to install] The thread insert is easy to install, quick and easy. Specification: Condition: 100% Brand New Material: Carbon Steel(Plating Color Zinc) Optional Style: Inner M2*0.4 Outer M 4.5*0.5, Inner M 4*0.7 Outer M6.5*0.75, Inner M3*0.5 Outer M5*0.5, Inner M5*0.8 Outer M8*1.0, Inner M6*1.0 Outer M9*1.0, Inner M6*1.0 Outer M10*1.5, Inner M8*1.25 Outer M12*1.5, Inner M10*1.5 Outer M 14*1.5, Inner M12*1.75 Outer M 16*1.5 Weight: Approx. 9-229g / 0.3-8.1oz Length: Approx. Inner M2*0.4 Outer M 4.5*0.5: 6mm / 0.2in Inner M 4*0.7 Outer M6.5*0.75: 8mm / 0.3in Inner M3*0.5 Outer M5*0.5: 6mm / 0.2in Inner M5*0.8 Outer M8*1.0: 10mm / 0.4in Inner M6*1.0 Outer M9*1.0: 12mm / 0.5in Inner M6*1.0 Outer M10*1.5: 14mm / 0.6in Inner M8*1.25 Outer M12*1.5: 15mm / 0.6in Inner M10*1.5 Outer M 14*1.5: 18mm / 0.7in Inner M12*1.75 Outer M 16*1.5: 22mm / 0.9in   Package List: 20Pcs Thread Inserts Package List