Anyone know anything about metric sheet metal screws

[John Larson]

Well, Global Metric, Wurth, and Maryland Metrics are 3 sources I can think
of right off the bat.  I stock about 30 sizes/types of new screws in black,
and have a career long policy of saving stuff like that whenever it comes
off a car and doesn't need to go back, like in a boneyard or when we strip a
wrecked or parts car.  In addition, Google provides a long list of
additional sources.  HTH, John