Description
The 12mm Hex Head Bolt is a high-quality 304 stainless steel fastener engineered for demanding applications that require strong, durable, and corrosion-resistant connections. Designed with a hexagonal head and a half-tooth thread structure, these Hexagonal Head Bolts conform to the DIN931 standard and offer exceptional reliability in construction, automotive, machinery, and other industrial environments. Its A2-70 strength grade ensures excellent mechanical performance, while the stainless-steel composition provides long-term resistance to rust, oxidation, and deformation.
Features & Benefits
- Corrosion & Rust Resistance: Made from 304 stainless steel, these bolts offer superior corrosion resistance, making them perfect for outdoor or high-humidity environments.
- High-Performance Strength: The A2-70 strength rating ensures that the bolts can withstand high mechanical stresses, making them ideal for heavy-duty applications.
- Easy Installation: The standard hexagonal head allows for easy installation with standard tools, preventing the tool from slipping during tightening.
- Versatile and Durable: These bolts are suitable for a wide range of applications, providing long-term durability and secure fastening.
Specification
|
Nominal diameter d |
Thread p |
b |
ds |
k |
s |
|||||
|
L≤125 |
125≤L≤200 |
200≤L |
max |
min |
max |
min |
max |
min |
||
|
M4 |
0.7 |
14 |
20 |
33 |
4 |
3.7 |
3 |
2.6 |
7 |
6.64 |
|
M5 |
0.8 |
16 |
22 |
35 |
5 |
4.7 |
3.24 |
2.76 |
8 |
7.64 |
|
M6 |
1 |
18 |
24 |
37 |
6 |
5.7 |
4.24 |
3.76 |
10 |
9.64 |
|
M8 |
1.25 |
22 |
28 |
41 |
8 |
7.64 |
5.54 |
5.06 |
13 |
12.57 |
|
M10 |
1.5 |
26 |
32 |
45 |
10 |
9.64 |
6.69 |
6.11 |
16 |
16.57 |
|
M12 |
1.75 |
30 |
36 |
49 |
12 |
11.57 |
7.79 |
7.21 |
18 |
18.48 |
|
M14 |
2 |
34 |
40 |
53 |
14 |
13.57 |
9.09 |
8.51 |
21 |
21.16 |
|
M16 |
2 |
38 |
44 |
57 |
16 |
15.57 |
10.29 |
9.71 |
24 |
23.16 |
|
M18 |
2.5 |
42 |
48 |
61 |
18 |
17.57 |
11.85 |
11.15 |
27 |
26.15 |
|
M20 |
2.5 |
46 |
52 |
65 |
20 |
19.48 |
12.85 |
12.15 |
30 |
29.16 |
|
M22 |
2.5 |
50 |
56 |
69 |
22 |
21.48 |
14.35 |
13.65 |
34 |
33 |
FAQ
Q1: What is the benefit of a "Half-Tooth" bolt (DIN931)?
A: The "Half-Tooth" or partial thread design (DIN931) means the smooth shank area below the head provides maximum shear strength, making this 12mm Hex Head Bolt ideal for load-bearing applications.
Q2: What is the difference between a half-tooth and full-thread bolt?
A: A half-tooth bolt features partial threading, providing better shear strength and is preferred for certain structural applications.
Q3: What does the A2-70 strength rating mean?
A: A2 refers to the material group (304 Stainless Steel), which offers excellent corrosion resistance. 70 indicates a minimum tensile strength of 700 N/mm², signifying a high-strength fastener.
Q4: Is this Hexagonal Head Bolt suitable for outdoor use?
A: Yes. Since it is made from 304 stainless steel, it provides superior resistance to corrosion and rust, ensuring long-term durability in outdoor and high-humidity environments.
Q5: Can this bolt be used with other stainless-steel fasteners?
Yes. It pairs perfectly with stainless steel nuts, washers, and other compatible fasteners.
