Rectangular anchor plates made of raw steel (S235JR)—square sizes ranging from 100 × 100 to 250 × 250 mm in thicknesses from 6 to 15 mm; rectangular sizes ranging from 100 × 50 to 170 × 120 mm in thicknesses from 6 to 10 mm. Available with round or slotted holes, usually with a center hole. Also available: flat caps for welding on to square tubing ranging from 30 to 60 mm.