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 size d | M3 | M4 | M5 | M6 | |
| P | Pitch | 0.5 | 0.7 | 0.8 | 1 |
| a | Maximum value | 1 | 1.4 | 1.6 | 2 |
| b | Minimum value | 25 | 38 | 38 | 38 |
| k | Maximum value | 2.4 | 3.1 | 3.7 | 4.6 |
| Minimum value | 2.26 | 2.92 | 3.52 | 4.3 | |
| h | Nominal | 0.5 | 0.8 | 1 | 1.6 |
| H | Nominal | 1.5 | 2 | 2.75 | 3.25 |
| D1 | Nominal | 7 | 9 | 10 | 12 |
| D2 | Refer to | 5.23 | 6.78 | 8.75 | 10.71 |
| Slot | 1 | 2 | 2 | 3 | |
| Thousand pieces of steel weight≈kg | - | - | - | - | |
| Thread b | - | - | - | - | |
| ①,The dimensions of cross recessed pan head screws refer to GB 818; The cross groove shall refer to GB 944.1. | |||||
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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