The plates with the big round hole are for repairing the doors. I understand you need plates for repairing the hinge fixing in the cabinet.
it looks to me as if a self-tapping screw will be needed uness the plate has been prepared with a slight thread. I guess your old hinges have a screw size different to that anticipated by the plate makers.
see if you can get screws to fit in the place you bought the plates. It might involve buying a new new hinges of the same brand. these hinges are usually in standard sizes.
If you have to buy screws separately, a motorists accessory shop or hardware store would have some. take the plates and old screws with you so you can get the correct size and length.
The screws might be the ones shown in
http://www.woodfit.com/product_info...ch=&Name=System+Screw+-+Nickel+plated[/QUOTE]
thanks so much its a releaf to know i wasn't going mad and missing a way of holding them together. the plates have no thread in them so ill look for screws that are a tight fit in the holes
thanks!