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 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
| P | Pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| a | Maximum value | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| dk | Maximum value | 5.5 | 7.3 | 8.4 | 9.3 | 10.3 | 11.3 |
| Minimum value | 5.2 | 6.9 | 8 | 8.9 | 9.9 | 10.9 | |
| k | Maximum value | 1.7 | 2.35 | 2.6 | 2.8 | 3 | 3.15 |
| r | Maximum value | 1.2 | 1.4 | 1.6 | 2 | 2.2 | 2.4 |
| Slot | 1 | 2 | 2 | 2 | 3 | 3 | |
| M1 | 3.2 | 4.4 | 4.6 | 5.2 | 6.6 | 6.8 | |
| M2 | 3.2 | 4.3 | 4.6 | 5.1 | 6.5 | 6.8 | |
| dp | 2.3 | 2.8 | 3.6 | 4.1 | 4.8 | 5.8 | |
| Drilling range (plate thickness) | 0.7~1.9 | 0.7~2.25 | 1.75~3 | 1.75~4.4 | 1.75~5.25 | 2~6 | |
| Lg (Minimum value) | - | - | - | - | - | - | |
| ① Material: Made of surface hardened steel according to DIN 17210 or quenched and tempered steel according to DIN EN 10083-1 and DIN EN 10083-2 (at the discretion of the manufacturer), equivalent steel grades are allowed. | |||||||
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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