Thread	Thread pitch	core diameter	core diameter	core drill	wrench width
		Bolt	Nut		(Hex)
M1	0.25	0.693	0.729	0.75	-
M1.2	0.25	0.893	0.929	0.73	-
M1.6	0.35	1.171	1.221	1.3	3.2
M2	0.4	1.509	1.567	1.6	4
M2.5	0.45	1.948	2.013	2.1	5
M3	0.5	2.387	2.459	2.5	5.5
M4	0.7	3.141	3.242	3.3	7
M5	0.8	4.019	4.134	4.2	8
M6	1	4.773	4.917	5	10
M8	1.25	6.466	6.647	6.8	13 (14)
M10	1.5	8.16	8.376	8.5	16 (17)
M12	1.75	9.853	10.106	10.2	18 (19)
M16	2	13.546	13.835	14	24
M20	2.5	16.933	17.294	17.5	30
M24	3	20.319	20.752	21	36
M30	3.5	25.706	26.211	26.5	46
M36	4	31.093	31.67	32	55
M42	4.5	36.479	37.129	37.5	65
M48	5	41.866	42.587	43	75
M56	5.5	49.252	50.046	50.5	85
M64	6	56.639	57.505	58	95