DIN 9021 - 1990 Large Plain Washers - Product Grade A（dc ≈ 3d）

Unit: 毫米(mm)

Nominal Diameter

2.7

3.2

3.7

For thread diameter
d	min=nominal size
	max
d_c	max=nominal size
	min
h	Nominal Size
	max
	min
per 1000 units ≈ kg

2.5	3	3.5
2.7	3.2	3.7
2.84	3.38	3.88
8	9	11
7.64	8.64	10.57
0.8	0.8	0.8
0.9	0.9	0.9
0.7	0.7	0.7
0.28	0.349	0.529

①,Material: a)Steel, hardness grade: 140HV；hardenss HV10: 140 to 250 b)Stainless steel, hardness grade: 140HV；hardenss HV10: 140 to 250；Steel grade A2,A4,F1,C1,C4 according to standard DIN 267-11 c)Non-ferrous metal and other materials acccording to agreement

GB /T 5287 - 2002

Plain Washers - Extra Large Serles - Product Grade C

GB /T 96.1 - 2002

Plain Washers - Large Series - Product Grade A

GB /T 96.2 - 2002

Plain Washers - Large Series - Product Grade C

GB /T 97.4 (L) - 2002

Plain Washers（Large）for Combination Screw

GB /T 5287 - 1985

Plain Washers - Extra Large Series - Product Grade C

GB 96 - 1985

Plain Washers-Large Series - Product Grade A and C

DIN 440 (R) - 1990

Extra Large Washers with Round Hole for use in Timber Constructions

DIN 6340 - 1987

Washers for Clamping Devices

DIN 134

Plain Washers - Large

DIN 34816 - 1999

Plastic Plain Washers - Large Series

ISO 7093-1 - 2000

Plain Washers—large Series—Product Grade A

ISO 7093-2 - 2000

Plain Washers—Large Series—Product Grade C

ISO 7094 - 2000

Plain Washers—Extra Large Series—Product Grade C

ISO 10673 (L) - 1998

Plain washers for screw and washer assemblies-Large series-Product grade A

JIS B 1256 (LA) - 2008

Large Plain Washers - Product Grade A

JIS B 1256 (LC) - 2008

Large Plain Washers - Product Grade C

JIS B 1256 (ELC) - 2008

Extra Large Plain Washers - Product Grade C

Q 402

Large plain washers

Q 402B

Large Plain Washers

NF E 25-513

Plain Washers - LL Style

NF E 25-513

Plain Washers - L Style

NF E 25-530 - 2000

Plain Washers - Large Series - Product Grade A

NF E 25-531 - 2000

Plain Washers - Large Series - Product Grade C

NF E 25-532 - 2000

Plain Washers - Extra Large Series - Product Grade C

BS 4320 (C) - 1968

Bright washers - Large diameter. Metric series - Form C

BS 4320 (D) - 1968

Bright washers - Large diameter (Light). Metric series - Form D

BS 4320 (G) - 1968

Black washers - Extra large diameter. Metric series - Form G

BS 4320 (F) - 1968

Black washers - Large diameter. Metric series - Form F

BS 3410 (-4) - 1961

Large birght washers for use with UNC, UNF, B.S.W. and B.S.F fasteners [Table 4]

BS 3410 (-6) - 1961

Large Bright Washers For Automobile Purposes For UNC,UNF,BSW And BSF Fasreners [Table 6]

BS 3410 (-2) - 1961

Large Plain Washers for use with B.A. and American Number size fasteners [Table 2]

BS 3410 (-8) - 1961

Large Black Washers [Table 8]

AS 1237.1 - 2002

Plain washers for metric bolts, screws and nuts for general purposes - Large, Product grade A and C

AS 1237.1 - 2002

Plain washers for metric bolts, screws and nuts for general purposes - Extra Large, product grade C

CNS 151 - 1994

Plain Washers

CNS 5194 - 1980

Large Plain Washers

GOST 6958 - 1978

Enlarged Washers， Product Grades A And C

DIN EN ISO 7093-1 - 2000

Plain washers - Large series - Part 1: Product grade A

DIN EN ISO 7094 - 2000

Extra Large Washers With Round Hole For Use In Timber Constructions

DIN EN ISO 7093-2 - 2000

Plain Washers - Large Series - Product Grade C

BS EN ISO 7093-1 - 2000

Plain Washers - large Series - Product Grade A

BS EN ISO 7093-2 - 2000

Plain Washers - Large Series - Product Grade C

BS EN ISO 7094 - 2000

Plain Washers - Extra Large Series - Product Grade C

GB	GB /T 96.1
ISO	ISO 7093-1
DIN	DIN EN ISO 7093-1
UNI	UNI 6593
Some of the above standards may be approximate equivalent. If there is any objection, the standard original shall prevail.