, to read : Figure 1 : Static force application device ( S-FAD ) , isometric views Figure 2 : Static force application device ( S-FAD ) , dimensions Stiffness of S-FAD : When attached to rigid anchorage bar ( s ) with the front cross member of the S-FAD supported by a rigid bar that is held at the centre by a longitudinal pivot 25 mm below the S-FAD base ( to allow bending and twisting of the S-FAD base ) the movement of point X shall not be greater than 2 mm in any direction when forces are applied in accordance with table No .