Published Jan. 27, 2018, 12:53 p.m.
The head of the screws should sink into the base section so they don't protrude. The screws I'm using have a flat ridge, i.e. no taper. I'm using a milling bit here to cut the flat-bottomed recess into already present holes. The rigidity of the milling and it's flat cutting end ensures the recess is accurately positioned.
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