Click Specification

(Non-preferred) dimensions in parentheses.

Extra Large Plain Washers - Product Grade C

JIS B 1256 (ELC) - 2008

Display drawing:

Nominal Diameter
d

Φ5

Φ6

Φ8

Φ10

Φ12

(Φ14)

Φ16

(Φ18)

Φ20

(Φ22)

Φ24

(Φ27)

Φ30

(Φ33)

Φ36

d	min
	max
d_c	max
	min
h	Nominal Size
	max
	min

5.5	6.6	9.0	11.0	13.5	15.5	17.5	20.0	22.0	24.0	26.0	30.0	33.0	36.0	39.0
5.8	6.96	9.36	11.43	13.93	15.93	18.2	20.84	22.84	24.84	26.84	30.84	34	37	40
18	22	28	34	44	50	56	60	72	80	85	98	105	115	125
16.9	20.7	26.7	32.4	42.4	48.4	54.1	58.1	70.1	78.1	82.8	95.8	102.8	112.8	122.5
2	2	3	3	4	4	5	5	6	6	6	6	6	8	8
2.3	2.3	3.6	3.6	4.6	4.6	6	6	7	7	7	7	7	9.2	9.2
1.7	1.7	2.4	2.4	3.4	3.4	4	4	5	5	5	5	5	6.8	6.8

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25	[GB] GB /T 5287 - 2002	Plain Washers - Extra Large Serles - Product Grade C
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28	[NF] NF E 25-513	Plain Washers - L Style
29	[GB] GB /T 5287 - 1985	Plain Washers - Extra Large Series - Product Grade C
30	[BS] BS 4320 (D) - 1968	Bright washers - Large diameter (Light). Metric series - Form D
31	[GB] GB /T 96.2 - 2000	Plain washers-Large series-Product grade C
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33	[NF] NF E 25-532 - 2000	Plain Washers - Extra Large Series - Product Grade C
34	[NF] NF E 25-531 - 2000	Plain Washers - Large Series - Product Grade C
35	[BS] BS 3410 (-2) - 1961	Large Plain Washers for use with B.A. and American Number size fasteners [Table 2]
36	[GOST] GOST 6958 - 1978	Enlarged Washers， Product Grades A And C
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39	[CNS] CNS 151 - 1994	Plain Washers
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