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ASTM A193 ASME
B18.2.3.6M Metric Heavy Hex Bolts-NINGBO BOLT |
Dimensions of ASME
B18.2.3.6M Metric Heavy Hex Bolts
|
Nominal Bolt Diameter, D, and Thread Pitch |
Body
Diameter Ds |
Width
Across Flats, S |
Width
Across Corners, E |
Head
Height, K |
Wrenching Height, K1 |
|
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Min |
|
M12 x 1.75 |
12.70 |
11.30 |
21.00 |
20.16 |
24.25 |
22.78 |
7.95 |
7.24 |
5.2 |
|
M14 x 2.0 |
14.70 |
13.30 |
24.00 |
23.16 |
27.71 |
26.17 |
9.25 |
8.51 |
6.2 |
|
M16 x 2.0 |
16.70 |
15.30 |
27.00 |
26.16 |
31.18 |
29.56 |
10.75 |
9.68 |
7.0 |
|
M20 x 2.5 |
20.84 |
19.16 |
34.00 |
33.00 |
39.26 |
37.29 |
13.40 |
12.12 |
8.8 |
|
M24 x 3.0 |
24.84 |
23.16 |
41.00 |
40.00 |
47.34 |
45.20 |
15.90 |
14.56 |
10.5 |
|
M20 x 3.5 |
30.84 |
29.16 |
50.00 |
49.00 |
57.74 |
55.37 |
19.75 |
17.92 |
13.1 |
|
M36 x 4.0 |
37.00 |
35.00 |
60.00 |
58.80 |
69.28 |
66.44 |
23.55 |
21.72 |
15.8 |
1.
All dimensions are in millimeters.
2.
Basic thread lengths, B, are same as given
in table 12 of ASME B18.2.3.6M.
3.
For additional manufacturing and acceptance specification, reference should be
made to ASME B18.2.3.6M-1979, R1989 standard.
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