Click Specification

(Non-preferred) dimensions in parentheses.

Black Washers - Large Diameter. Metric Series - Form F

BS 4320 (F) - 1968

Display drawing:

Size

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

(M27)

M30

(M33)

M36

(M39)

d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

9	11	14	16	18	20	22	24	26	30	33	36	39	42
9.4	11.5	14.5	16.5	18.5	20.6	22.6	24.6	26.6	30.6	33.8	36.8	39.8	42.8
9	11	14	16	18	20	22	24	26	30	33	36	39	42
21	24	28	30	34	37	39	44	50	56	60	66	72	77
21	24	28	30	34	37	39	44	50	56	60	66	72	77
20.2	23.2	27.2	29.2	32.8	35.8	37.8	42.8	48.8	54.5	58.5	64.5	70.5	75.5
1.6	2	2.5	2.5	3	3	3	3	4	4	4	5	5	6
1.9	2.3	2.8	2.8	3.6	3.6	3.6	3.6	4.6	4.6	4.6	6.0	6.0	7
1.3	1.7	2.2	2.2	2.4	2.4	2.4	2.4	3.4	3.4	3.4	4	4	5

Send Inquiry

Similar Standards

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