308 Self-tapping Three Hole Threaded Insert 

308 Self-tapping Three Hole Threaded Insert 308 Self Tapping Threaded Inserts(308 Enast) are for materials with difficult cutting properties. This 308 Type Self-Tapping Thread Insert has a thick wall and the cutting force is distributed over three cutting edges. Helisert Thread Insert is ideally suited for the fast repair of torn and damaged threads. The same screw size can be used again. Size& Type： Metric: M2-M30, with cutting slot, also for normal Inch sizes. M3-M24, with cutting bore, also for normal Inch sizes. Material:   Stainless Steel Case-hardened steel, zinc plated Brass Other material on request Finishes & Coating: Zinc plated (Yellow, Blue, etc.) Dry Film Lubricants