螺纹强度的降低 (GB/T 3098.2GB/T 3098.4)

 

试验载荷比率/%

螺纹公差

6H

7H

6G

M2.5

100

95.5

M2.5

M7

100

95.5

97

M7

M16

100

96

97.5

M16

M39

100

98

98.5