Helicoil Eco Insert Refill Pack - M4 X 0.7, Metric

These eco insert refill kits from Helicoil are precision manufactured for easy and efficient installation. The wire features a rhombic profile which is moulded into elastic spirals, while the first thread is made slightly smaller in order to simplify fitment.Easy installationHigh quality manufacturingProvides an accurate and correct thread instantlyInstalled like a screw; once fitted, the result is an internal thread that is the correct gauge and accepts screws at both ends. Designed to be high strength, wear-resistant and heat-resistant, these are ideal for use in the workshop, garage or on the drive, this refill kit is perfect for quick and accurate repairs.