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2.5

3.5

Plain Washers For Screw And Washer Assemblies—Type L, Product Grade A

DIN EN ISO 10673 (L) - 2009

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Nominal Diameter

2.5

3.5

d	min=nominal size
	max
d_c	max=nominal size
	min
h	Nominal Size
	max
	min

1.75	2.25	2.75	3.2	3.6	4.55	5.5	7.4	9.3	11
1.85	2.35	2.85	3.32	3.72	4.67	5.62	7.55	9.52	11.27
6	8	9	11	12	15	18	24	30	37
5.7	7.64	8.64	10.57	11.57	14.57	17.57	23.48	29.48	36.38
0.6	0.6	0.8	0.8	1	1	1.6	2	2.5	3
0.65	0.65	0.85	0.85	1.06	1.06	1.68	2.09	2.6	3.11
0.55	0.55	0.75	0.75	0.94	0.94	1.52	1.91	2.4	2.89

①,Material:
Steel, Hardness class: 200 HV | 300 HV; Hardness range:200 HV to 300 HV | 300 HV to 370 HV
Note: a)The designation must be tempered (HT) or work hardened (WH). If no specification is made, the manufacturer is free to choose. b)Other materials by agreement between the screw manufacturer and the supplier of the washers
②,Acceptance
The acceptance test is subject to ISO 3269
③,Hardness test to ISO 6507-1.
Test load:
HV 2 for nominal thicknesses: h ≤ 0.6 mm;
HV 10 for nominal thicknesses: 0.6 mm HV 30 for nominal thicknesses: h> 1.2 mm.
④,Product Class A does not apply to the tolerances of hole diameter d1 and thickness h.

Alternative history

DIN 6902(B) - 1990 DIN EN ISO 10673(L) - 2009

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