Coil inserts are designed to repair stripped threads in a variety of metals; aluminum, aluminum alloys, steel and cast iron
These helically coiled inserts are made of stainless steel wire that has been rolled to a carefully controlled thread form
When installed, coil inserts adjust to a tapped hole, becoming a functional thread with a strength exceeding the original
Specifications
Coil inserts meet all applicable industrial and military specifications
They may be used on all military and government trucks, aircraft and other vehicles covered by MS 21208 and MS 21209; also NAS 1222 specifications for helically coiled wire