part which the door clicks into to keep the door closed?

I ordered a new part code c00201014 (the part which the door clicks into to keep the door closed) as I broke it being heavy handed. I unscrewed the the two screws which hold the part to the machine, then a piece dropped from the back and now the screw wont grab . . is this an essential part or providing the brackets firm, will the machine still work? . . . I apologise for my poor wording! simon