there's a discrepancy between these details that you might be able to clarify straight away.On the plan of this plate,it show eight bolts.But on section A,here,there are no bolts show in the middle.So there would only be six,which obviously contradicts the plan.But as you can see this plate's going to be bolted to a T profile.So we couldn't put a row of bolts down the middle,because they'd clash with the flange running along the middle of the T.