DIN 912 Socket Cap Screws With Serration

DIN 912 Socket Cap Screws standard contains the main specifications of ISO 4762 — 1977, adopted in a modified form, with national addenda. These addenda are shaded grey in clauses 1 and 3 to 6.

DIN 912 Equivalent

PN 82302 UNI 5931 CSN 21143

DIN 912 Dimensions

Thread d	P	b	dk			da	ds		e	h	k		r	s			t	v	dw	w
			max.	max. for grooved head	min.	max.	max.	min.	min.	max.	max.	min.	min.	nominal	max.	min.	min.	max.	min.	min.
M1.6	0.35	15	3	3.14	2.86	2	1.6	1.46	1.733	0.34	1.6	1.46	0.1	1.5	1.58	1.52	0.7	0.16	2.72	0.55
M2	0.4	16	3.8	3.98	3.62	2.6	2	1.86	1.733	0.51	2	1.86	0.1	1.5	1.58	1.52	1	0.2	3.48	0.55
M2.5	0.45	17	4.5	4.68	4.32	3.1	2.5	2.36	2.303	0.51	2.5	2.36	0.1	2	2.08	2.02	1.1	0.25	4.18	0.85
M3	0.5	18	5.5	5.68	5.32	3.6	3	2.86	2.873	0.51	3	2.86	0.1	2.5	2.58	2.52	1.3	0.3	5.07	1.15
M4	0.7	20	7	7.22	6.78	4.7	4	3.82	3.443	0.6	4	3.82	0.2	3	3.08	3.02	2	0.4	6.53	1.4
M5	0.8	22	8.5	8.72	8.28	5.7	5	4.82	4.583	0.6	5	4.82	0.2	4	4.095	4.02	2.5	0.5	8.03	1.9
M6	1	24	10	10.22	9.78	6.8	6	5.82	5.723	0.68	6	5.7	0.25	5	5.14	5.02	3	0.6	9.38	2.3
M8	1.25	28	13	13.27	12.73	9.2	8	7.78	6.863	1.02	8	7.64	0.4	6	6.14	6.02	4	0.8	12.33	3.3
M10	1.5	32	16	16.27	15.73	11.2	10	9.78	9.149	1.02	10	9.64	0.4	8	8.175	8.025	5	1	15.33	4
M12	1.75	36	18	18.27	17.73	13.7	12	11.73	11.429	1.45	12	11.57	0.6	10	10.175	10.025	6	1.2	17.23	4.8
(M14)	2	40	21	21.33	20.67	15.7	14	13.73	13.716	1.45	14	13.57	0.6	12	12.212	12.032	7	1.4	20.17	5.8
M16	2	44	24	24.33	23.67	17.7	16	15.73	15.996	1.45	16	15.57	0.6	14	14.212	14.032	8	1.6	23.17	6.8
M20	2.5	52	30	30.33	29.67	22.4	20	19.67	19.437	2.04	20	19.48	0.8	17	17.23	17.05	10	2	28.87	8.6
M24	3	60	36	36.39	35.61	26.4	24	23.67	21.734	2.04	24	23.48	0.8	19	19.275	19.065	12	2.4	34.81	10.4
M30	3.5	72	45	45.39	44.61	33.4	30	29.67	25.154	2.89	30	29.48	1	22	22.275	22.065	15.5	3	43.61	13.1
M36	4	84	54	54.46	53.54	39.4	36	35.61	30.854	2.89	36	35.38	1	27	27.275	27.065	19	3.6	52.54	15.3
M42	4.5	96	63	63.46	62.54	45.6	42	41.61	36.571	3.06	42	41.38	1.2	32	32.33	32.08	24	4.2	61.34	16.3
M48	5	108	72	72.46	71.54	52.6	48	47.61	41.131	3.91	48	47.38	1.6	36	36.33	36.08	28	4.8	70.34	17.5
M56	5.5	124	84	84.54	83.46	63	56	55.54	46.831	5.95	56	55.26	2	41	41.33	41.08	34	5.6	82.26	19
M64	6	140	96	96.54	95.46	71	64	63.54	52.531	5.95	64	63.26	2	46	46.33	46.08	38	6.4	94.26	22

Thread d			M1.6		M2		M2.5		M3		M4		M5		M6		M8		M10		M12
l			ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg
nominal	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.
2.5	2.3	2.7	full thread
3	2.8	3.2	full thread
4	3.76	4.24	full thread
5	4.76	5.24	full thread
6	5.76	6.24	full thread
8	7.71	8.29	full thread
10	9.71	10.29	full thread
12	11.65	12.35	full thread
16	15.65	16.35	full thread
20	19.58	20.42			2	4	full thread
25	24.58	25.42					5.75	8	4.5	7	full thread
30	29.58	30.42							9.5	12	6.5	10	4	8	full thread
35	34.5	35.5									11.5	15	9	13	6	11	full thread
40	39.5	40.5									16.5	20	14	18	11	16	5.75	12	full thread
45	44.5	45.5											19	23	16	21	10.75	17	5.5	13	full thread
50	49.5	50.5											24	28	21	26	15.75	22	10.5	18
55	54.4	55.6													26	31	20.75	27	15.5	23	10.25	19
60	59.4	60.6													31	36	25.75	32	20.5	28	15.25	24
65	64.4	65.6															30.75	37	25.5	33	20.25	29
70	69.4	70.6															35.75	42	30.5	38	25.25	34
80	79.4	80.6															45.75	52	40.5	48	35.25	44
90	89.3	90.7																	50.5	58	45.25	54
100	99.3	100.7																	60.5	68	55.25	64
110	109.3	110.7																			65.25	74
120	119.3	120.7																			75.25	84
130	129.2	130.8
140	139.2	140.8
150	149.2	150.8
160	159.2	160.8
180	179.2	180.8
200	199.07	200.92
220	219.07	220.92
240	239.07	240.92
260	258.95	261.05
280	278.95	281.05
300	298.95	301.05

thread d			(M14)		M16		M20		M24		M30		M36		M42		M48		M56		M64
l			ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg	ls	lg
nominal	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.
16	15.65	16.35
20	19.58	20.42	full thread
25	24.58	25.42	full thread		full thread
30	29.58	30.42	full thread		full thread		full thread
35	34.5	35.5	full thread		full thread		full thread		full thread
40	39.5	40.5	full thread		full thread		full thread		full thread
45	44.5	45.5	full thread		full thread		full thread		full thread		full thread
50	49.5	50.5	full thread		full thread		full thread		full thread		full thread
55	54.4	55.6	full thread		full thread		full thread		full thread		full thread		full thread
60	59.4	60.6	10	20	full thread		full thread		full thread		full thread		full thread		full thread
65	64.4	65.6	15	25	11	21	full thread		full thread		full thread		full thread		full thread
70	69.4	70.6	20	30	16	26	full thread		full thread		full thread		full thread		full thread		full thread
80	79.4	80.6	30	40	26	36	15.5	28	full thread		full thread		full thread		full thread		full thread		full thread
90	89.3	90.7	40	50	36	46	25.5	38	15	30	full thread		full thread		full thread		full thread		full thread		full thread
100	99.3	100.7	50	60	46	56	35.5	48	25	40	full thread		full thread		full thread		full thread		full thread		full thread
110	109.3	110.7	60	70	56	66	45.5	58	35	50	20.5	38	full thread		full thread		full thread		full thread		full thread
120	119.3	120.7	70	80	66	76	55.5	68	45	60	30.5	48	16	36	full thread		full thread		full thread		full thread
130	129.2	130.8	80	90	76	86	65.5	78	55	70	40.5	58	26	46	full thread		full thread		full thread		full thread
140	139.2	140.8	90	100	86	96	75.5	88	65	80	50.5	68	36	56	21.5	44	full thread		full thread		full thread
150	149.2	150.8			96	106	85.5	98	75	90	60.5	78	46	66	31.5	54	full thread		full thread		full thread
160	159.2	160.8			106	116	95.5	108	85	100	70.5	88	56	76	41.5	64	27	52	full thread		full thread
180	179.2	180.8					115.5	128	105	120	90.5	108	76	96	61.5	84	47	72	28.5	56	full thread
200	199.075	200.925					135.5	148	125	140	110.5	128	96	116	81.5	104	67	92	48.5	76	30	60
220	219.075	220.925													101.5	124	87	112	68.5	96	50	80
240	239.075	240.925													121.5	155	107	132	88.5	116	70	100
260	258.95	261.05													141.5	164	127	152	108.5	136	90	120
280	278.95	281.05													161.5	184	147	172	128.5	156	110	140
300	298.95	301.05													181.5	204	167	192	148.5	176	130	160