The Fischer RG M I internal thread anchor is made of stainless steel. This internal thread anchor is a system accessory for various Fischer mortar cartridges or injection mortars. For individual fixings, using the pre-portioned mortar cartridge is particularly economical. During installation with the mortar cartridge, the RG M I is set using a rotary hammer in a rotating and impact manner. During the setting process, the mortar cartridge is destroyed, mixed, and activates the mortar mass. When using injection mortars, the internal thread anchor is manually pushed into the drill hole with slight rotational movements. The different mortars bond the RG M I fully with the wall of the drill hole. The internal thread anchor can be removed flush with the surface and is especially suitable for temporary fixings, such as machines, in outdoor areas.