Thread prep

M3 x 0.5 Tap Drill

Tap drill and clearance reference for M3 x 0.5.

75% thread engagementMETRIC_COARSE standard
Tap drillSee decimal
Decimal0.0984 in / 2.5 mm
Fit typeClearance hole
Close fit3.2 mm
Normal fit3.4 mm
Loose fit3.6 mm