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GB /T 1230 - 2006 High Strength Plain Washers for Steel Structural


Unit: 毫米(mm)
Weight Calculator
Size
12 16 20
d min
max
dc min
max
h Nominal Size
min
max
d1 min
max
per 1000 units ≈ kg
13 17 21
13.43 17.43 21.52
23.7 31.4 38.4
25 33 40
3 4 4
2.5 3.5 3.5
3.8 4.8 4.8
15.23 19.23 24.32
16.03 20.03 25.12
10.47 23.4 33.55
Alternative history GB /T 1230 - 1991 GB /T 1230 - 2006 GB /T 1231washer - 2024
Equivalent standard
GB GB /T 1230
非等效采用 ISO 7416
ISO ISO 7416
Some of the above standards may be approximate equivalent. If there is any objection, the standard original shall prevail.

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