The fischer ring nut RI is the ring nut for all fixings with threaded bolts. Due to the metric internal thread, the ring nut RI can be used flexibly with a wide range of steel anchors or threaded rods. Ropes and chains are secured with it, as well as climbing scaffolds, clothes lines, or hanging baskets. The ring nut can be used in cracked and non-cracked concrete, and also in solid and hollow building materials in line with the anchor used.