thread d , in mm	pitch p , in mm	dimension a max., in mm	dimension b min., in mm	head diameter d_k nom. = max., in mm	head diameter d_k min., in mm	diameter d_a max., in mm	dimension k nom. = max., in mm	dimension k min., in mm	dimension n nom., in mm	dimension n max., in mm	dimension n min., in mm	dimension r min., in mm	dimension t min., in mm	dimension w min., in mm	dimension x max., in mm	Range of commercial lengths l nom., in mm
M1.6	0.35	0.7	25	3	2.86	2	1.1	0.96	0.4	0.6	0.46	0.1	0.45	0.4	0.9	2, 3, 4, 5, 6, 8, 10, 12, (14), 16
M2	0.4	0.8	25	3.8	3.62	2.6	1.4	1.26	0.5	0.7	0.56	0.1	0.6	0.5	1	3, 4, 5, 6, 8, 10, 12, (14), 16, 20
M2.5	0.45	0.9	25	4.5	4.32	3.1	1.8	1.66	0.6	0.8	0.66	0.1	0.7	0.7	1.1	3, 4, 5, 6, 8, 10, 12, (14), 16, 20, 25
M3	0.5	1	25	5.5	5.32	3.6	2	1.86	0.8	1	0.86	0.1	0.85	0.75	1.25	4, 5, 6, 8, 10, 12, (14), 16, 20, 25, 30
(M3.5)	0.6	1.2	38	6	5.82	4.1	2.4	2.26	1	1.2	1.06	0.1	1	1	1.5	5, 6, 8, 10, 12, (14), 16, 20, 25, 30, 35
M4	0.7	1.4	38	7	6.78	4.7	2.6	2.46	1.2	1.51	1.26	0.2	1.1	1.1	1.75	5, 6, 8, 10, 12, (14), 16, 20, 25, 30, 35, 40
M5	0.8	1.6	38	8.5	8.28	5.7	3.3	3.12	1.2	1.51	1.26	0.2	1.3	1.3	2	6, 8, 10, 12, (14), 16, 20, 25, 30, 35, 40, 45, 50
M6	1	2	38	10	9.78	6.8	3.9	3.6	1.6	1.91	1.66	0.25	1.6	1.6	2.5	8, 10, 12, (14), 16, 20, 25, 30, 35, 40, 45, 50, (55), 60
M8	1.25	2.5	38	13	12.73	9.2	5	4.7	2	2.31	2.06	0.4	2	2	3.2	10, 12, (14), 16, 20, 25, 30, 35, 40, 45, 50, (55), 60, (65), 70, (75), 80
M10	1.5	3	38	16	15.73	11.2	6	5.7	2.5	2.81	2.56	0.4	2.4	2.4	3.8	12, (14), 16, 20, 25, 30, 35, 40, 45, 50, (55), 60, (65), 70, (75), 80