50pcs Stainless Steel Helical Thread Inserts M4 x 2D, Coiled Wire Screw Thread Repair Kit for Aluminum, Wear - Threaded Inserts for Frequent Use and Vibration R

Description: Steel thread inserts can effectively improve screw connection, greatly improving the reliability. Used in all kinds of low strength materials, thread inserts can largely improve the wear resistance performance of screw connection, and avoid thread damage.Features: Steel thread inserts used in low strength materials such as aluminum, , can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection condition.Used for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread. Because of a certain elasticity, thread insert can even the load distribution on each thread, eliminate pitch and tooth deviation between screw and screw hole, and absorb vibration, thus increasing the screw thread connection strength and fatigue resistance. It can prevent screw from getting loose,especially used for products requiring high coefficient of insurance. Easy to maintenance, install a thread insert into a damage screw hole, then the screw hole can be used as normal, in order to avoid workpiece loss.Specifications: Material: Stainless steel Size: M4(inner diameter) x 2D(installed length=2*4mm=8mm) Quantity: 50pcs Weight: 89g(approx.)Package Includes: 50 x Threaded Inserts 1 x Installation Tool (M4)1 x Dedicated Tap (ST4) 1 x Tang Breaker1 x Drill BitNote:Please note that the main part of this product will be sent randomly, please make sure you don't mind before ordering.

• Enhanced Thread Strength: These stainless steel helical thread inserts reinforce screw threads in soft materials like aluminum and , preventing stripping and delivering reliable connection strength even under heavy use or frequent assembly cycles.
• Vibration and Loosening Resistance: The coiled wire design of the screw thread insert evenly distributes load across threads, absorbs vibration, and eliminates pitch errors, effectively keeping screws secure in high-vibration environments such as machinery or automotive parts.
• Ideal for Repairs and Upgrades: Perfect for restoring damaged threads without replacing entire components, these threaded inserts let you reuse worn or stripped holes in engine blocks, electronics housings, or industrial fixtures—saving time and reducing waste.
• Durable Stainless Steel Construction: Made from high-quality stainless steel, each helical insert offers excellent resistance, wear resistance, and long service life, ensuring consistent performance in both indoor and outdoor mechanical applications.
• Complete M4 x 2D Set for Easy Installation: This package includes 50 pieces of M4 x 2D coiled wire thread inserts, compatible with standard tapping tools, making it simple to install during maintenance or manufacturing for a quick, professional-grade thread repair solution.