Looking for effective Ikea desk component from the year 2002

Hello first of all to the forum, I have registered here a few minutes ago. And immediately the questions start to rain..... We have recently moved and unfortunately I am missing a component (actually two) for my desk Effectiv from the year 2002. On this, "MANN" could attach two extensions (additional tabletops 80x40 and 80x60). The attachment is made, among other things, by two steel plates (with 4 holes) which I have unfortunately lost along with the screws. Of course, as it could not be otherwise, we have also misplaced the instruction manuals. So here are my questions: -does anyone still have instruction manuals for these models (Art.Nr.90019731, 50019728, 50019727) -or can someone help us with the order number for these steel plates and screws? Unfortunately, the Ikea hotline could not assist me either. Best regards and thanks in advance!!!!

Try to get the assembly instructions from IKEA via Facebook.