Feature:1. Smart Self Tapping: No need for threading the workpiece, the self tapping threaded insert can easily drill deep into the material without seam.2. Larger Application: Widely applied to automobile, shipbuilding, household appliances, construction machinery, electronic products and so on.3. Standard in Design: Designed to have M4 x 0.7 female thread, M6.5 x 0.75 male thread and 8mm length, the threaded insert ensures no loosening.4. With Good Material: Adopting premium stainless steel, the thread insert nut is very sturdy with impact, and very durable for long term using.5. Convenient Carrying: Comes with a light weight and a compact size as well, the insert nut is very convenient to carry for outdoor working.Specification:Item Type: Self Tapping Threaded InsertModel: Slotting Threaded InsertQuantity: 20pcsMaterial: Stainless SteelProduct Size:Female Thread: M4 x 0.7Male Thread: M6.5 x 0.75Length: Approx. 8mm / 0.31inReference Drilling Diameter: Approx. For Plastic: 5.8 ~ 5.9mm / 0.23 ~ 0.23inFor Alloy: 6.0 ~ 6.1mm / 0.24 ~ 0.24inFor Cast Iron: 6.1 ~ 6.2mm / 0.24 ~ 0.24inMinimum Drilling Depth: Approx. 10mm / 0.39in.Package List:20 xSelf Tapping Threaded Insert