标准螺纹连接件，螺纹螺距对照表！DIY的朋友可以参考一下！ 螺纹底孔为螺纹直径减去螺距，如果是软材料或者比较薄的材料，底孔可以再稍微小一点！ 括号内的是不建议选型使用的！ | 螺纹 | 粗 牙 | 细 牙 | | M1 | 0.25 | 0.2 | | M1.1 | 0.25 | 0.2 | | M1.6 | 0.35 | 0.2 | | M2 | 0.4 | 0.25 | | M2.5 | 0.45 | 0.35 | | M3 | 0.5 | 0.35 | | M4 | 0.7 | 0.5 | | M5 | 0.8 | 0.5 | | M6 | 1 | 0.75, (0.5) | | M8 | 1.25 | 1, 0.75, (0.5) | | M10 | 1.5 | 1.25, 1, 0.75, (0.5) | | M12 | 1.75 | 1.5, 1.25, 1, (0.75), (0.5) | | (M14) | 2 | 1.5, 1.25, 1, (0.75), (0.5) | | M16 | 2 | 1.5, 1.25, 1, (0.75), (0.5) | | (M18) | 2.5 | 2, 1.5, 1.25, 1, (0.75), (0.5) | | M20 | 2.5 | 2, 1.5, 1.25, 1, (0.75), (0.5) | | (M22) | 2.5 | 2, 1.5, 1.25, 1, (0.75), (0.5) | | M24 | 3 | 2, 1.5, 1, (0.75) | | (M27) | 3 | 2, 1.5, 1, (0.75) | | M30 | 3.5 | 3, 2, 1.5, 1, (0.75) | | (M33) | 3.5 | (3), 2, 1.5, 1, (0.75) | | M36 | 4 | 3, 2, 1.5, (1) | | (M39) | 4 | 3, 2, 1.5, (1) | | M42 | 4.5 | (4), 3, 2, 1.5, (1) | | (M45) | 4.5 | (4), 3, 2, 1.5, (1) | | M48 | 5 | (4), 3, 2, 1.5, (1) | | (M52) | 5 | (4), 3, 2, 1.5, (1) | | M56 | 5.5 | 4, 3, 2, 1.5, (1) | | (M60) | 5.5 | 4, 3, 2, 1.5, (1) | | M64 | 6 | 4, 3, 2, 1.5, (1) | | (M68) | 6 | 4, 3, 2, 1.5, (1) | | M72 | 6 | 4, 3, 2, 1.5, (1) | | (M76) | 6 | 4, 3, 2, 1.5, (1) | | M80 | 6 | 4, 3, 2, 1.5, (1) |
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