DIN 128 A

Equivalent Standards

DIN 128 A - Split Spring Washers, Curved, Form A Dimensions

Nominal size	For thread	d1 min.	d1 max.	b	s	h min.	h max.	r	Weight kg/1000pcs
2	M2	2.1	2.4	0.9 ± 0.1	0.5 ± 0.1	0.7	0.9	0.1	0.035
2.5	M2.5	2.6	2.9	1 ± 0.1	0.6 ± 0.1	0.9	1.1	0.1	0.055
3	M3	3.1	3.4	1.3 ± 0.1	0.7 ± 0.1	1.1	1.3	0.1	0.09
3.5	M3.5	3.6	3.9	1.3 ± 0.1	0.7 ± 0.1	1.1	1.3	0.1	0.1
4	M4	4.1	4.4	1.5 ± 0.1	0.8 ± 0.1	1.2	1.4	0.2	0.15
5	M5	5.1	5.4	1.8 ± 0.1	1 ± 0.1	1.5	1.7	0.2	0.3
6	M6	6.1	6.5	2.5 ± 0.15	1.3 ± 0.1	2	2.2	0.3	0.7
7	M7	7.1	7.5	2.5 ± 0.15	1.3 ± 0.1	2	2.2	0.3	0.75
8	M8	8.1	8.5	3 ± 0.15	1.6 ± 0.1	2.45	2.75	0.5	1.3
10	M10	10.2	10.7	3.5 ± 0.2	1.8 ± 0.1	2.85	3.15	0.5	2.1
12	M12	12.2	12.7	4 ± 0.2	2.1 ± 0.15	3.35	3.65	1	3.2
14	M14	14.2	14.7	4.5 ± 0.2	2.4 ± 0.15	3.9	4.3	1	4.8
16	M16	16.2	17	5 ± 0.2	2.8 ± 0.15	4.5	5.1	1	7
18	M18	18.2	19	5 ± 0.2	2.8 ± 0.15	4.5	5.1	1	7.8
20	M20	20.2	21.2	6 ± 0.2	3.2 ± 0.2	5.1	5.9	1	12.2
22	M22	22.5	23.5	6 ± 0.2	3.2 ± 0.2	5.1	5.9	1	13.3
24	M24	24.5	25.5	7 ± 0.25	4 ± 0.2	6.5	7.5	1.6	21.5
27	M27	27.5	28.5	7 ± 0.25	4 ± 0.2	6.5	7.5	1.6	23.7
30	M30	30.5	31.7	8 ± 0.25	6 ± 0.2	9.5	10.5	1.6	42.5
36	M36	36.5	37.7	10 ± 0.25	6 ± 0.2	10.3	11.3	1.6	68

DIN 128 Curved Spring Washers Weights

Size	Weight
M2	0.035
M2.5	0.055
M3	0.09
M3.5	0.10
M4	0.15
M5	0.30
M6	0.70
M7	0.75
M8	1.30
M10	2.10
M12	3.20
M14	4.80
M16	7.00
M18	7.80
M20	12.2
M22	13.3
M24	21.5
M27	23.7
M30	42.5
M36	68.0

Weights are in kilograms per 1,000 pieces unless otherwise specified. All weights are approximations and strictly informative.