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(Non-preferred) dimensions in parentheses.

Plain Washers—large Series—Product Grade A

ISO 7093-1 - 2000

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Screw Thread
d

Φ3

(Φ3.5)

Φ4

Φ5

Φ6

Φ8

Φ10

Φ12

(Φ14)

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

3.2	3.7	4.3	5.3	6.4	8.4	10.5	13	15
3.38	3.88	4.48	5.48	6.62	8.62	10.77	13.27	15.27
9	11	12	15	18	24	30	37	44
8.64	10.57	11.57	14.57	17.57	23.48	29.48	36.38	43.38
0.8	0.8	1	1	1.6	2	2.5	3	3
0.9	0.9	1.1	1.1	1.8	2.2	2.7	3.3	3.3
0.7	0.7	0.9	0.9	1.4	1.8	2.3	2.7	2.7

Screw Thread
d

Φ16

(Φ18)

Φ20

(Φ22)

Φ24

(Φ27)

Φ30

(Φ33)

Φ36

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

17	19	21	23	25	30	33	36	39
17.27	19.33	21.33	23.52	25.52	30.52	33.62	36.62	39.62
50	56	60	66	72	85	92	105	110
49.38	55.26	59.26	64.8	70.8	83.6	90.6	103.6	108.6
3	4	4	5	5	6	6	6	8
3.3	4.3	4.3	5.6	5.6	6.6	6.6	6.6	9
2.7	3.7	3.7	4.4	4.4	5.4	5.4	5.4	7

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Similar Standards

1	[ISO] ISO 7093-2 - 2000	Plain Washers—Large Series—Product Grade C
2	[DIN EN ISO] DIN EN ISO 7093-2 - 2000	Plain Washers - Large Series - Product Grade C
3	[DIN] DIN 440 (R) - 1990	Extra Large Washers With Round Hole For Use In Timber Constructions
4	[DIN EN ISO] DIN EN ISO 7094 - 2000	Extra Large Washers With Round Hole For Use In Timber Constructions
5	[DIN] DIN 34816 - 1999	Plastic Plain Washers - Large Series
6	[DIN EN ISO] DIN EN ISO 7093-1 - 2000	Plain washers - Large series - Part 1: Product grade A
7	[DIN] DIN 6340 - 1987	Washers for Clamping Devices
8	[DIN] DIN 9021 - 1990	Large Plain Washers - Product Grade A
9	[DIN] DIN 134	Plain Washers - Large
10	[ISO] ISO 7094 - 2000	Plain Washers—Extra Large Series—Product Grade C
11	[ISO] ISO 10673 (L) - 1998	Plain washers for screw and washer assemblies-Large series-Product grade A
12	[BS] BS 3410 (-8) - 1961	Large Black Washers [Table 8]
13	[NF] NF E 25-513	Plain Washers - LL Style
14	[BS] BS 3410 (-4) - 1961	Large birght washers for use with UNC, UNF, B.S.W. and B.S.F fasteners [Table 4]
15	[JIS] JIS B 1256 (LA) - 2008	Large Plain Washers - Product Grade A
16	[GB] GB /T 5287 - 1985	Plain Washers - Extra Large Series - Product Grade C
17	[JIS] JIS B 1256 (ELC) - 2008	Extra Large Plain Washers - Product Grade C
18	[JIS] JIS B 1256 (LC) - 2008	Large Plain Washers - Product Grade C
19	[GB] GB /T 96.2 - 2002	Plain Washers - Large Series - Product Grade C
20	[BS] BS 4320 (G) - 1968	Black washers - Extra large diameter. Metric series - Form G
21	[NF] NF E 25-513	Plain Washers - L Style
22	[GB] GB /T 5287 - 2002	Plain Washers - Extra Large Serles - Product Grade C
23	[BS] BS 3410 (-6) - 1961	Large Bright Washers For Automobile Purposes For UNC,UNF,BSW And BSF Fasreners [Table 6]
24	[NF] NF E 25-531 - 2000	Plain Washers - Large Series - Product Grade C
25	[BS] BS 4320 (D) - 1968	Bright washers - Large diameter (Light). Metric series - Form D
26	[NF] NF E 25-532 - 2000	Plain Washers - Extra Large Series - Product Grade C
27	[BS] BS 3410 (-2) - 1961	Large Plain Washers for use with B.A. and American Number size fasteners [Table 2]
28	[GB] GB /T 96.1 - 2000	Plain washers-Large series-Product grade A
29	[BS] BS 4320 (F) - 1968	Black washers - Large diameter. Metric series - Form F
30	[NF] NF E 25-530 - 2000	Plain Washers - Large Series - Product Grade A
31	[GB] GB /T 96.1 - 2002	Plain Washers - Large Series - Product Grade A
32	[GB] GB /T 96.2 - 2000	Plain washers-Large series-Product grade C
33	[GB] GB /T 97.4 (L) - 2002	Plain Washers（Large）for Combination Screw
34	[BS] BS 4320 (C) - 1968	Bright washers - Large diameter. Metric series - Form C
35	[GB] GB 96 - 1985	Plain Washers-Large Series - Product Grade A and C
36	[GOST] GOST 6958 - 1978	Enlarged Washers， Product Grades A And C
37	[AS] AS 1237.1 - 2002	Plain washers for metric bolts, screws and nuts for general purposes - Large, Product grade A and C
38	[AS] AS 1237.1 - 2002	Plain washers for metric bolts, screws and nuts for general purposes - Extra Large, product grade C
39	[CNS] CNS 151 - 1994	Plain Washers
40	[CNS] CNS 5194 - 1980	Large Plain Washers