Source for metric set screws?

[Highpower]

Probably not. I only paid $4.99 for the gauge as I was the sole bidder on fleabay.

I don't know if the screws are the same size or not since Ken's is the 'small' body gauge and mine is a 'large' body gauge.

Stromberg huh? Wow that's a name I haven't seen in a looong time.

When new these gauges originally sold for hundreds of dollars!