We specialize in the research and development, production, and sales of various standard, non-standard, and fasteners such as high-quality and high-precision bolts, screws, nuts, washers, etc.
Fasteners have diverse materials and complete specifications, supporting non-standard customization.
Consulting service hotline:13306482520
Email:13306482520@163.com
| Thread specification | ST2.2 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ST8 | ST9.5 | ||
| P | Pitch | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | 2.1 | |
| a | Maximum value | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | 2.1 | |
| dc | Maximum value | 4.5 | 6.4 | 7.5 | 8.5 | 10 | 11.2 | 12.8 | 16.8 | 21 | |
| Minimum value | 4.1 | 5.9 | 6.9 | 7.8 | 9.3 | 10.3 | 11.8 | 15.5 | 19.3 | ||
| c | Minimum value | 0.3 | 0.4 | 0.5 | 0.6 | 0.6 | 0.8 | 1 | 1.2 | 1.4 | |
| s | Maximum value | 3 | 4 | 5 | 5.5 | 7 | 7 | 8 | 10 | 13 | |
| Minimum value | 2.86 | 3.82 | 4.82 | 5.32 | 6.78 | 6.78 | 7.78 | 9.78 | 12.73 | ||
| e | Minimum value | 3.16 | 4.27 | 5.36 | 5.92 | 7.55 | 7.55 | 8.66 | 10.89 | 14.16 | |
| k | Maximum value | 2.2 | 3.2 | 3.8 | 4.3 | 5.2 | 6 | 6.7 | 8.6 | 10.7 | |
| y | Refer to | C | 2 | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 | 7.5 | 8 |
| F | 1.6 | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | 4.2 | 4.2 | ||
| Thousand pieces of steel weight≈kg | - | - | - | - | - | - | - | - | - | ||
E-Mail：13306482520@163.com
Phone：133-0648-2520
Address：008, Zone 9, Wanxing International Hardware City, Heilongjiang North Road, Chengyang District, Qingdao City, Shandong Province
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