Abstract: There is provided a prestressed universal rolling mill of a type in which a housing is divided into three parts, i.e., an upper cross beam carrying a top horizontal roll, an intermediate frame carrying vertical rolls and a lower cross beam carrying a bottom horizontal roll, and these three parts are clamped together by means of tension bars, whereby after the clamping force on the housing has been released, the tension bars are rotated to simultaneously move the upper and lower cross beams the same distance in different directions, thereby making it possible to readily adjust the position of the top and bottom horizontal rolls and making the construction of the roll stand itself compact and rigid.