Alloy Steel 12.9 Hex Socket Head Shoulder Bolt/Screw
1. Standard: ISO 7379/ASME B18.3.4
2. Material: Stainless steel, SCM435 alloy steel, or according to client's requirement
3. Strength Grade: 8.8/10.9/12.9 or SS304/316
4. Diameter: 6-24mm (metric), 1/4''-3/4'' (inch)
5. Length: 8-180 mm, 3/8''-6'' inch, or according to client's requirement
6. Exterior Finish: Black/Plain or according to client's requirement
7. Non-standard: OEM/ODM is available, according to drawings or samples
8. Packing: General packing or according to requirement
9. Sample Charge: Standard samples are free
| Unit: inch (ASME) |
| |
|
φ1/4 |
φ5/16 |
φ3/8 |
φ1/2 |
φ5/8 |
φ3/4 |
| ds |
max |
0.248 |
0.3105 |
0.373 |
0.498 |
0.623 |
0.748 |
| min |
0.246 |
0.3085 |
0.371 |
0.496 |
0.621 |
0.746 |
| dk |
max |
0.375 |
0.438 |
0.562 |
0.75 |
0.875 |
1 |
| min |
0.357 |
0.419 |
0.543 |
0.729 |
0.853 |
0.977 |
| k |
max |
0.188 |
0.219 |
0.25 |
0.312 |
0.375 |
0.5 |
| min |
0.177 |
0.209 |
0.24 |
0.302 |
0.365 |
0.49 |
| s |
nominal |
0.125 |
0.156 |
0.188 |
0.25 |
0.312 |
0.375 |
| t |
min |
0.094 |
0.117 |
0.141 |
0.188 |
0.234 |
0.281 |
| d |
nominal |
10# |
1/4 |
1/3 |
3/8 |
1/2 |
5/8 |
| nominal dia |
0.19 |
0.25 |
0.3125 |
0.375 |
0.5 |
0.625 |
| PP |
T |
24 |
20 |
18 |
16 |
13 |
11 |
| b |
thread length |
0.375 |
0.438 |
0.5 |
0.625 |
0.75 |
0.875 |
| Unit: mm (ISO 7379) |
| d |
M5 |
M6 |
M8 |
M10 |
M12 |
M16 |
M20 |
| P |
thread pitch |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2.5 |
| ds |
nominal |
6.5 |
8 |
10 |
13 |
16 |
20 |
25 |
| max |
6.487 |
7.987 |
9.987 |
12.984 |
15.984 |
19.98 |
24.98 |
| min |
6.451 |
7.951 |
9.951 |
12.941 |
15.941 |
19.928 |
24.928 |
| b |
max |
9.75 |
11.25 |
13.25 |
16.4 |
18.4 |
22.4 |
27.4 |
| min |
9.25 |
10.75 |
12.75 |
15.6 |
17.6 |
21.6 |
26.6 |
| dk |
Flat Head |
max |
10 |
13 |
16 |
18 |
24 |
30 |
36 |
| Knurled |
max |
10.22 |
13.27 |
16.27 |
18.27 |
24.33 |
30.33 |
36.39 |
| min |
9.78 |
12.73 |
15.73 |
17.73 |
23.67 |
29.67 |
35.61 |
| k |
max |
4.5 |
5.5 |
7 |
9 |
11 |
14 |
16 |
| min |
4.32 |
5.32 |
6.78 |
8.78 |
10.73 |
13.73 |
15.73 |
| s |
nominal |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
| max |
3.08 |
4.095 |
5.095 |
6.095 |
8.115 |
10.115 |
12.142 |
| min |
3.02 |
4.02 |
5.02 |
6.02 |
8.025 |
10.025 |
12.032 |
| t |
min |
2.4 |
3.3 |
4.2 |
4.9 |
6.6 |
8.8 |
10 |
| g1 |
max |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
3 |
| g2 |
max |
2 |
2.5 |
3.1 |
3.7 |
4.4 |
5 |
6.3 |
| ds1 |
max |
3.86 |
4.58 |
6.25 |
7.91 |
9.57 |
13.33 |
16.57 |
| min |
3.68 |
4.4 |
6.03 |
7.69 |
9.35 |
12.96 |
16.3 |
| e |
min |
3.44 |
4.58 |
5.72 |
6.86 |
9.15 |
11.43 |
13.72 |
| r |
min |
0.25 |
0.4 |
0.6 |
0.6 |
0.6 |
0.8 |
0.8 |
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Established in 2004, Hangzhou Jiangxin Industry Co., Ltd is a national high-tech enterprise and a scientific and technological enterprise in Zhejiang Province. Specializing in fastener manufacturing, the company integrates production, research and development, and sales. With state-of-the-art fastener production equipment and advanced ERP system management, we ensure top-quality products.
Our products adhere to various international standards such as German (DIN), American (ANSI, ASME), international (ISO), national (GB), Japanese (JIS), and British (BSW) standards. We offer a wide range of high-strength bolts and advanced expansion bolts made from carbon steel and stainless steel 304 and 316, suitable for applications in high-speed rail, automobiles, ships, machinery, electronics, and construction.
Key products include bolts (outer hexagonal, inner hexagonal, carriage, flange), screws (machine, drilling, set, wood, self-tapping), nuts (hexagonal, K caps, nylon, self-locking, flange, cap, rivet nut series), and others (semi-hollow rivets, step rivets, non-standard customization).
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