Dimensions for UNI 5739 Hexagon head bolts with thread up to head

Size D	P	a		c		da	dw		e		k					kwb		r	s
		max	min	max	min	max	production class A min.	production class B min	production class A min.	production class B min	Nominal	Production class A max	Production class A min	Production class B max	Production class B min	Production class A min	Production class B min	min	Nominal max.	Production class A min	Production class B min
M 1.6	0.35	1.05	0.35	0.25	0.1	2	2.27	2.3	3.41	3.28	1.1	1.225	0.975	1.3	0.9	0.68	0.63	0.1	3.2	3.02	2.9
M2	0.4	1.2	0.4	0.25	0.1	2.6	3.07	2.95	4.32	4.18	1.4	1.525	1.275	1.6	1.2	0.89	0.84	0.1	4	3.82	3.7
M2.5	0.45	1.35	0.45	0.25	0.1	3.1	4.07	3.95	4.45	5.31	1.7	1.825	1.575	1.9	1.5	1.1	1.05	0.1	5	4.82	4.7
M3	0.5	1.5	0.5	0.4	0.15	3.6	4.57	4.45	6.01	5.88	2	2.125	1.875	2.2	1.8	1.31	1.26	0.1	5.5	5.32	5.2
M4	0.7	2.1	0.7	0.4	0.15	4.7	5.88	5.74	7.66	7.5	2.8	2.925	2.675	3	2.6	1.87	1.82	0.2	7	6.78	6.64
M5	0.38	2.4	0.8	0.5	0.15	5.7	6.88	6.74	8.79	8.63	3.5	3.65	3.35	3.74	3.26	2.35	2.28	0.2	8	7.78	7.64
M6	1	3	1	0.5	0.15	6.8	8.88	8.74	11.05	10.89	4	4.15	3.85	4.24	3.76	2.7	2.63	0.25	10	9.78	9.64
M8	1.25	4	1.25	0.6	0.15	9.2	11.63	11.47	14.38	14.2	5.3	5.45	5.15	5.54	5.06	3.61	3.54	0.4	13	12.73	12.57
M10	1.5	4.5	1.5	0.6	0.15	11.2	14.63	14.47	17.77	17.59	6.4	6.58	6.22	6.69	6.11	4.35	4.28	0.4	16	15.73	15.57
M12	1.75	5.3	1.75	0.6	0.15	13.7	16.63	16.47	20.03	19.85	7.5	7.68	7.32	7.79	7.21	5.12	5.05	0.6	18	17.73	17.57
M16	2	6	2	0.8	0,2	17.7	22.49	22	26.75	26.17	10	10.18	9.82	10.29	9.71	6.87	6.8	0.6	24	23,67	23.16
M20	2.5	7.5	2.5	0.8	0,2	22.4	28.19	27.7	33.53	32.95	12.5	12.715	12.285	12.85	12.15	8.6	8.51	0.8	30	29,67	29.16
M24	3	9	3	0.8	0,2	26.4	33.61	33.25	39.98	39.55	15	15.215	14.785	15.35	14.65	10.35	10.26	0.8	36	35.38	35
M30	3.5	10.5	3.5	0.8	0,2	33.4	-	42.75	-	50.85	18.7	-	-	19.12	18.28	-	12.8	1	46	-	45
M36	4	12	4	0.8	0,2	39.4	-	51.11	-	60.79	22.5	-	-	22.95	22.08	-	15.46	1	55	-	53.8
M42	4.5	13.5	4.5	1	0,3	45.6	-	59.95	-	71.3	26	-	-	26.42	25.58	-	17.91	1.2	65	-	63.1
M48	5	15	5	1	0,3	52.6	-	69.45	-	82.6	30	-	-	30.42	29.58	-	20.71	1.6	75	-	73.1
M56	5.5	16.5	5.5	1	0,3	63	-	78.66	-	93.56	35	-	-	35.5	34.5	-	24.15	2	85	-	82.8
M64	6	18	6	1	0,3	71	-	88.16	-	104.86	40	-	-	40.5	39.5	-	27.65	2	95	-	92.8