Fasteners — Hexalobular Socket Countersunk Flat Head Screws
ISO 14581 - 2013 梅花槽沉头螺钉
See all versions and complete specifications: Fasteners — Hexalobular Socket Countersunk Flat Head Screws — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 2673.1 |
| ISO | ISO 14581 |
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M2 | 0.45 | 0.66 | 1.5 | 1.1 | 5.5 | 4.7 | 2.4 | 0.79 | 4.4 | T8 |
| M3 | 0.8 | 1.12 | 2.7 | 2 | 10.4 | 9.3 | 4.5 | 1.51 | 8.94 | T25 |
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| M4 | 1.5 | 2.41 | 5 | 3.8 | 20 | 18.3 | 8.95 | 2.8 | 17.78 | T50 |
| M2.5 | 0.6 | 1.16 | 2.35 | 1.5 | 8.2 | 7.3 | 3.35 | 1.32 | 6.94 | T15 |
| (M3.5) | 1.25 | 2.15 | 4.65 | 3.2 | 17.3 | 15.8 | 7.95 | 2.54 | 15.37 | T45 |
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