For clearance drill diameter: (Pg 7 thru Pg 13.5 add 0.1 ...

THREAD DATA CHART: Metric Electrical Thread . Fine Pitch (EN 60423 table 1) Nominal Size ISO MF . ... Minor Diameter Female Thd. D1. Thread Height Male Thd. h3. Thread Height Female Thd. H1. Tap Drill Diameter mm. Clearance Drill Diameter mm. 12x1.5. M. 12.00. 1.50. 0.217. 11.026. 10.160. 10.376. 0.920. ... (The table is not a size for size ... ................
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