Tap Chart - Metric Threads & Counterbore Holes Dimensions (metric) for Metric Socket Head Cap Screws

Tap Chart - Metric Threads & Counterbore Holes Dimensions (metric) for Metric Socket Head Cap Screws
Screw Diameter	Tap Size	Drill Size	Counterbore Diameter	Counterbore Depth	Countersink Diameter	Clearance Diameter (Normal Fit)	Clearance Diameter (Close Fit)	Bolt Torque- Nm
								Dry	Lubed
M2	M2 X 0.4	1.6 mm	4.4 mm	2 mm	2.6 mm	2.4 mm	2.2 mm
M3	M3 X 0.5	2.5 mm	6.5 mm	3 mm	3.6 mm	3.7 mm	3.4 mm
M4	M4 X 0.7	3.3 mm	8.25 mm	4 mm	4.7 mm	4.8 mm	4.4 mm
M5	M5 X 0.8	4.2 mm	9.75 mm	5 mm	5.7 mm	5.8 mm	5.4 mm	10.3	7.7
M6	M6 X 1	5 mm	11.2 mm	6 mm	6.8 mm	6.8 mm	6.4 mm	17.6	13.1
M8	M8 X 1.25	6.8 mm	14.5 mm	8 mm	9.2 mm	8.8 mm	8.4 mm	42.6	32.1
M10	M10 X 1.5	8.5 mm	17.5 mm	10 mm	11.2 mm	10.8 mm	10.5 mm	84	64
M12	M12 X 1.75	10.2 mm	19.5 mm	12 mm	14.2 mm	13 mm	12.5 mm	146	110
M14	M14 X 2	12 mm	22.5 mm	14 mm	16.2 mm	15 mm	14.5 mm	235	176
M16	M16 X 2	14 mm	25.5 mm	16 mm	18.2 mm	17 mm	16.5 mm	365	274
M20	M20 X 2.5	17.5 mm	31.5 mm	20 mm	22.4 mm	21 mm	20.5 mm	712	534
M24	M24 X 3	37.5 mm	37.5 mm	24 mm	26.4 mm	25 mm	24.5 mm	1231	923