ASTM A325M heavy hexagon bolts are high-strength fasteners designed for structural applications requiring high load-bearing capacity and durability. They are commonly used for steel-to-steel connections in bridges, buildings, and other critical infrastructure, where safety and reliability are paramount.
Product Parameters
|
Drive Style |
Heavy Hex Head Bolts |
|
Screw Features |
Heavy Hex |
|
System of Measurement |
Metric |
|
Thread Direction |
Right Hand |
|
Threading |
Fully threaded and partially threaded |
|
Thread Fit |
Class 6g |
|
Thread Spacing |
Coarse |
|
Grade/Class |
ASTM A325M Type1 |
|
Material |
Medium carbon steel |
|
Standard |
ASME B18.2.6M |
|
Finish |
HDG |
|
RoHS |
RoHS 3 (2015/863/EU) Compliant |
|
Country of Origin |
China |
Product Drawing
|
Metric heavy hex screws |
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|
ASME/ANSI B18.2.3.3M |
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|
|
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|
d(mm) |
P(mm) |
b(mm) |
ds(mm) |
k(mm) |
s(mm) |
|||||
|
L≤125 |
125<L≤200 |
L>200 |
min |
max |
min |
max |
min |
max |
||
|
M12 |
1.75 |
30 |
36 |
49 |
11.73 |
12 |
7.24 |
7.76 |
20.67 |
21 |
|
M14 |
2 |
34 |
40 |
53 |
13.73 |
14 |
8.51 |
9.09 |
23.67 |
24 |
|
M16 |
2 |
38 |
44 |
57 |
15.73 |
16 |
9.68 |
10.32 |
26.67 |
27 |
|
M20 |
2.5 |
46 |
52 |
65 |
19.67 |
20 |
12.12 |
12.88 |
33 |
34 |
|
M24 |
3 |
54 |
60 |
73 |
23.67 |
24 |
14.56 |
15.44 |
40 |
41 |
|
M30 |
3.5 |
66 |
72 |
85 |
29.67 |
30 |
17.92 |
19.48 |
49 |
50 |
|
M36 |
4 |
78 |
84 |
97 |
35.61 |
36 |
21.72 |
23.38 |
58.8 |
60 |
Advantages of ASTM A325M Heavy Hex Bolts
1.High Strength and Durability:
Designed for demanding structural applications, these bolts can withstand tremendous stresses and loads without failure.
2.Wide Application:
A325M bolts are suitable for various structural applications, offering flexibility across different industries.
3.Easy Installation:
The heavy hex design makes them easier to tighten and torque, even in large construction projects, reducing the risk of under-tightening.
4.Cost-effectiveness:
Their high strength and relatively low cost make A325M bolts a popular choice for budget-conscious construction projects.
Application Scenarios
1.Construction: Used in high-rise buildings, bridges, stadiums, and factory structures, primarily to provide high-strength connections and enhance the overall structure's shear resistance and stability.
2.Machinery: Used for fastening industrial and agricultural equipment.
3.Oil and gas industry: Used for high-stress connections in pipelines and drilling platforms.
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