材质 
M1.6
0.35
2.48
2.42
0.46
0.6
0.6
1.1
1
M2
0.4
2.98
2.92
0.56
0.7
0.7
1.4
1
M2.5
0.45
3.47
3.395
0.66
0.7
0.9
1.8
1
M3
0.5
3.97
3.895
0.66
0.8
1
2.2
1
M4
0.7
4.97
4.895
0.86
1
1.4
3
1.5
M5
0.8
5.97
5.895
0.86
1
1.7
3.8
1.5
M6
1
7.96
7.87
1.26
1.51
2
4.5
2
M8
1.25
9.96
9.87
1.66
1.91
2.5
6.2
2
M10
1.5
11.95
11.84
2.06
2.31
3
7.8
3