Spectacle Frames - Slotted Round Flat Head Screws
JIS B 1119 (1RF) - 1986 眼镜框架用 - 开槽弧面平头螺钉
See all versions and complete specifications: Spectacle Frames - Slotted Round Flat Head Screws — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M1 | 0.25 | 0.05 | 0.4 | 0.53 | 0.48 | 2 | 1.86 | 0.45 | 0.5 | 0.67 | 0.4 |
| M1.2 | 0.3 | 0.05 | 0.5 | 0.53 | 0.48 | 2.8 | 2.66 | 0.55 | 0.6 | 0.67 | 0.4 |
| M1.4 | 0.4 | 0.05 | 0.5 | 0.53 | 0.48 | 3 | 2.86 | 0.55 | 0.6 | 0.67 | 0.4 |
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