1、Large Contact Surface: Our self tapping screw thread insert nut has a large contact surface to withstand tensile force, which allows for stable use. 2、Vibration Resistance: Self tapping screw threaded insert has strong resistance to vibration, which prevents loosening and gives you a better using experience. 3、Self Tapping Thread Capability: The self tapping screw thread insert has self tapping thread capability, the parent material does not have to be pre tapped, saving time and energy. 4、Good Air Tightness: Self tapping screw thread insert has no clearance with the base material, and also has good air tightness if the base material contains air bubbles. 5、Widely Used: Self tapping screw threaded insert nut is widely used in automotive industry, railroad car industry, marine industry, household appliances, business machines, electronic products, engineering plastics and so on. 20 x Self Tapping Screw Threaded Insert Nut Item Type: Self Tapping Screw Threaded InsertQuantity: 20PCSMaterial: Stainless SteelSize:Female Thread: M10x 1.5Male Thread: M14x 1.5Length: Approx. 18mm/ 0.71inReference Drilling DiameterPlastic: 12.6- 12.8 Alloy: 13.0- 13.3 Cast Iron: 13.2- 13.4Minimum Drilling Depth: 22mm, Approx. 22mm/ 0.87in