High quality plate used in conjunction with Wing Nuts, which is designed to spread the load of the Tie Bar into the shuttering.
 
15mm - Pressed - 120 x 120 x 10mm - Hole Dia 20mm
20mm - Plain - 120 x 120 x 20mm - Hole Dia 26mm
26.5mm - Plain - 130 x 130 x 35 - Hole Dia 32mm