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Tapped case holes with M4 x .7. Holes were exactly the correct size for M4 but the screw feels a little loose. Would have liked it with a tighter drill hole.
Had to angle grind one of my M4's to make it a bottoming tap but it all tapped ok right to bottom. I have just over 6mm thread travel. The material probably tapped too easily, it feels a little "weak". So I'll have to be careful tightening screws.
Just using M4 countersunk to feel the threads, have M4 cap head screws on the way.
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