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

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(Non-preferred) dimensions in parentheses.

GB /T 1230 - 2006

Unit: mm

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

Unit: mm

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GBT 1230_12

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

Size

12

d	min
	max
d_c	min
	max
h	Nominal Size
	min
	max
d₁	min
	max
per 1000 units ≈ kg

13
13.43
23.7
25
3
2.5
3.8
15.23
16.03
10.47