E-Z Lok Helical Thread Inserts and Kits for Soft Metals

April 15, 2024
E-Z Lok Helical Thread Inserts and Kits for Soft Metals

E-Z Lok, a leading manufacturer and master distributor of threaded inserts for metal, plastic and wood now offers E-Z Coil™ and thread repair kits.

Wire or helical coil threaded inserts quickly repair or reinforce tapped holes in soft metals. Made from 18-8 stainless steel wire, these helical coil inserts are corrosion resistant and can withstand temperatures up to 800°F. Furthermore, they offer corrosion resistance and protection from wearing and stripping.

E-Z Coil™ helical insert coils are manufactured by forming the stainless steel wire into a diamond shape and then winding it into a spring. Prior to installation, the insert diameters are larger than the tapped hole.  During installation, the insert diameter of the helical coil insert is reduced, allowing the insert to thread into the hole. Once properly installed, the radial pressure of the released insert holds the insert firmly in place. 

Thread Repair kits are available in both standard and economy, and in a variety of sizes. Each Economy E-Z Coil™ Thread Repair kit includes a set of inserts, an STI tap, and an installation tool.  The standard kit also includes a tang break tool and drill bit.

CAD files on this product can be downloaded in over 100 file formats from the E-Z Lok website at https://www.ezlok.com/cad-downloads

Related Glossary Terms

  • computer-aided design ( CAD)

    computer-aided design ( CAD)

    Product-design functions performed with the help of computers and special software.

  • corrosion resistance

    corrosion resistance

    Ability of an alloy or material to withstand rust and corrosion. These are properties fostered by nickel and chromium in alloys such as stainless steel.

  • tang


    Extended flat portion of tapered drill shank, endmill or other tool that allows maximum power transmission and proper positioning of the tool. Reverse shape of the machine-spindle slot into which it fits.

  • tap


    Cylindrical tool that cuts internal threads and has flutes to remove chips and carry tapping fluid to the point of cut. Normally used on a drill press or tapping machine but also may be operated manually. See tapping.