YM anchorage system is a completed, independent building measure researched, it can be used to lock the steel strand wires on/under classes of 2000MPA standard strength, which isusually in diameters of 12.7mm, 12.9mm, 15.2mm and 15.7mm. It has b een verified by practice that various type of YM anchor also can be used for the different kinds of strand wires producted according to ASTM/BS/JIS/JIG/AS and other international strandards respectively only if its technical parameters shall marry the related detail materials.