d1 - Inner diameter
r1 - diameter of the sphere
h2 - Washer width
d2 - Inner diameter
h3 - Washer width
d4 - Outer diameter
d3 - Outer diameter
h1 - height
f1 - internal shrinkage
d5 - average shrinkage

DIN 6319 Dimensions for Spherical Washers

d1	d2	d3	d4		d5	f1	h1	h2	h3		r1	Weight kg/100pcs			Thread size	Maximum bolting force
H13	H13		Type D	Type G					Type D	Type G		C	D	G		in KN
6.4	7.1	12	12	17	11	0.3	0.7	2.3	2.8	4	9	0.09	0.14	0.56	M6	9
8.4	9.6	17	17	24	14.5	0.5	0.6	3.2	3.5	5	12	0.25	0.38	1.3	M8	17
10.5	12	21	21	30	18.5	0.5	0.8	4	4.2	5	15	0.47	0.65	1.86	M10	26
13	14.2	24	24	36	20	0.5	1.1	4.6	5	6	17	0.71	1.06	3.7	M12	38
15	16.5	28	28	40	24.8	0.5	1.2	5	5.6	6	22	1	1.8	4.8	M14	53
17	19	30	30	44	26	0.5	1.3	5.3	6.2	7	22	1.23	1.87	7	M16	73
21	23.2	36	36	50	31	0.5	2	6.3	7.5	8	27	2.08	3.2	9.4	M20	117
25	28	44	44	60	37	0.8	2.4	8.2	9.5	10	32	4.2	6.3	16.9	M24	168
31	35	56	56	68	49	0.8	3.6	11.2	12	12	41	8.7	13.3	23.8	M30	269
37	42	68	68	-	60	1	4.6	14	15	-	50	18.4	23.6	-	M36	394
43	49	78	78	-	70	1	6.5	17	18	-	58	29.7	36.5	-	M42	542
50	56	92	92	-	82	1	8	21	22	-	67	52.5	64.1	-	M48	714