Square anchor plates made of raw Steel (S235JR) ranging from 100 × 100 to 250 × 250 mm in thicknesses of 6, 8, 10, 12, and 15 mm. With four round holes (Ø 11 or Ø 13 mm) or four slotted holes 14 × 20 mm, usually with a center hole. Also available in two designs measuring 150 × 150 × 10 mm in accordance with the railing guidelines of the Federal Association of the Metal Industry.