Quote:
Originally Posted by hcoles
Good find - thanks. I was wondering where to find these sorts of screws. Metric, black and like sheet metal screws with various types of washers. I see black interior screws for American cars but haven't see much at my local auto parts store in metric.
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You won't find metric sheet metal screws, because they're just "American" or "Imperial" sizes with "metric" names. So, the 4.2mm "metric" sheet metal screw is really just a #8 sheet metal screw, with a metric nomenclature. I think the three sizes you'll find in our cars are 2.9, 3.5, 4.2 and 4.8 which are #4, #6, #8 and #10
Otherwise, it would be a 4.0mm metric sheet metal screw
McMasterCarr is another good resource for things like sheet metal screws (especially important ones, like #8 threads with a #6 head, for when the holes are a bit hogged out), finish washers, etc.
3.5x13 is a popular size in our cars, which is a #6x1/2 screw.