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 d | M4 | M5 | M6 | M8 | |
| a | Maximum value | 1.4 | 1.6 | 2 | 2.5 |
| b | Minimum value | 38 | 38 | 38 | 38 |
| h | Nominal | 0.8 | 1 | 1.6 | 1.6 |
| H | Nominal | 2.75 | 3.25 | 4 | 5 |
| dc | Nominal | 9 | 10 | 12 | 16 |
| d2 | Refer to | 6.78 | 8.75 | 10.71 | 13.64 |
| Thousand pieces of steel weight≈kg | - | - | - | - | |
| Thread b | - | - | - | - | |
| ①, Other size references Bolt: GB 29.2, GB 944.1; Washers: GB 9074.24/GB 9074.26 | |||||
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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