Weldable Anchors – 15mm/20mm – A forged anchor which can be welded to structural steel, sheet piling etc. Anchors must be welded continuously all the way round. Load test should be conducted before use.Waterbarrier Nuts – 15mm/20mm – For use in water retaining structures. They are cast into the concrete wall between two seperate tie bars. After the concrete pour, the tie bars are removed leaving the water barrier nut in-situ.