螺母性能等级
|
公称保证应力
|
实际保证应力
|
04
|
400
|
380
|
05
|
500
|
500
|
螺母性能等级
|
相配的螺栓、螺钉和螺柱
|
螺 母
|
||
1型
|
2型
|
|||
性能等级
|
螺纹规格范围
|
螺纹规格范围
|
||
4
|
3.6、4.6、4.8
|
>M16
|
>M16
|
-
|
5
|
3.6、4.6、4.8
|
≤M16
|
≤M39
|
-
|
5.6、5.8
|
≤M39
|
|||
6
|
6.8
|
≤M39
|
≤M39
|
-
|
8
|
8.8
|
≤M39
|
≤M39
|
>M16
≤M39
|
9
|
9.8
|
≤M16
|
-
|
≤M16
|
10
|
10.6
|
≤M39
|
≤M39
|
-
|
12
|
12.9
|
≤M39
|
≤M16
|
≤M39
|