Railway Rolling Stock Grade A Countersunk Notched Head Machine
NF F 03-004 (F) - 1983 铁路车辆 沉头侧切口机械螺钉
See all versions and complete specifications: Railway Rolling Stock Grade A Countersunk Notched Head Machine — Full Specification Page
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.7 | / | 4 | 3.3 | 8.4 | 7.9 | 1.5 | 1 | 2.7 | 1.75 |
| M4 | 1 | / | 6 | 5.4 | 11.3 | 10.9 | 2 | 1.5 | 3.3 | 2.25 |
| M5 | 1.5 | 50 | 10 | 8.6 | 18.3 | 17.8 | 3 | 2.5 | 5 | 3.25 |
| M6 | 1.75 | 60 | 12 | 10.4 | 22.5 | 22 | 3.5 | 3 |
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| 6.6 |
| 3.8 |
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