Size A
B
C
D1
D2
E1
E2
Proof Test
mm in
Tons
M6 1/4
102
12
10
19
16
8
0.2
M8 5/16
127
14
18
0.35
M10 3/8
152
17
21
22
0.5
M12 1/2
229
21.25
15
32.5
30
1
M16 5/8
26.75
39
40
1.5
M20 3/4
20
50
2.25
M22 7/8
305
33.5
25
57.5
55
24
3.25
M24 1
356
42.25
63
4.25
M28 1-1/8
32
70
60
27
5.5
M32 1-1/4
381
48
34
74
65
7.5
M36 1-3/8
36
78
8.5
M39 1-1/2
406
38
83
35
10.25