GOST 6402-70 Spring Washer

GOST 6402-70 Spring Washer , square section spring washer, material by spring steel SAE1070, Black oxide or Galvanized, size M3-M56 from China Spring Washer manufacturer.

GOST 6402-70 Spring Washer
Standard: GOST 6402
Material: Steel
Finish: Black oxide / Zinc Plated / Flake Zinc/ Hot Dip Galvanized
Size:M3 – M56

Gost6402 Spring Washer Types:
Н – normal with square cross section;
T – heavy with a square cross section;
OT – extra heavy with square cross section;
L – light with a rectangular cross section.

GOST 6402-70 Spring Washer specification:

Size	d		Normal Series, H (b=s)		Heavy Series, T(b=s)		Extreme, OT(b=s)
Size	d min	d max	max	min	max	min	max	min
3	3.1	3.4	0.88	0.72	1.125	0.875	/	/
4	4.1	4.4	1.125	0.875	1.525	1.275	/	/
5	5.1	5.4	1.325	1.075	1.725	1.475	/	/
6	6.1	6.68	1.525	1.275	2.125	1.875	/	/
8	8.2	8.78	2.125	1.875	2.625	2.375	/	/
10	10.2	10.9	2.625	2.375	3.125	2.875	3.74	3.26
12	12.2	12.9	3.125	2.875	3.74	3.26	4.24	3.76
14	14.2	14.9	3.35	3.05	4.24	3.76	4.74	4.26
16	16.3	17	3.65	3.35	4.74	4.26	5.24	4.76
18	18.3	19.14	4.15	3.85	5.24	4.76	5.74	5.26
20	20.5	21.34	4.65	4.35	5.74	5.26	6.24	5.76
22	22.5	23.34	5.15	4.85	6.24	5.76	7.29	6.71
24	24.5	25.34	5.65	5.35	7.29	6.71	8.29	7.71
27	27.5	28.34	6.15	5.85	8.29	7.71	9.29	8.71
30	30.5	31.5	6.68	6.32	9.29	8.71	10.29	9.71