Helical Inserts
Helical Inserts, commonly known as thread repair coils or helicoils, are precision-engineered wire inserts designed to restore damaged threads or reinforce new threads in softer materials. They are manufactured from stainless steel wire, wound into a diamond-shaped coil that provides greater load distribution and increased thread strength compared to the original tapped hole.
Modern helical inserts are available in free-running and screw-locking types, providing either smooth fastener installation or additional resistance to loosening under vibration. They are corrosion-resistant, lightweight, and suitable for high-stress environments. Installation kits typically include a drill, tap, installation tool, and tang-break tool for complete thread repair.
The applications of helical inserts are widespread across aerospace and defense industries for aluminum and titanium components, automotive workshops for engine and transmission repairs, and industrial maintenance for restoring threads in pumps, compressors, and machinery housings. They are also commonly used in consumer electronics where durable miniature threads are needed.
Performance depends on correct hole preparation and insert size. When installed properly, helical inserts often exceed the strength of the original thread, making them a reliable solution for critical applications.
ToolHoo.com offers high-quality Helical Inserts and complete repair kits for industries, workshops, and maintenance teams across Pakistan. By ensuring precision and durability, our inserts restore functionality and extend the service life of valuable components. At ToolHoo.com, it’s always “Tools No Toils – Solve IT!”


