〔技术参数〕螺纹底孔孔径表 1. 公制粗牙螺纹螺纹的公称直径最小尺寸 2级?3级最大尺寸 2级3级 M1× M × M × M × M × M × M × M2× M × M × M × M × M3× M × M4× M × M5× M6×1 ------------ M7×1M8× M9× M 10 × M 11 × M 12 × M 14 ×2M 16 ×2M 18 × M 20 × M 22 × M 24 ×3M 27 ×3M 30 × M 33 × M 36 ×4M9×4M 42 × M5× M 48 ×5 2. 公制细牙螺纹螺纹的公称直径最小尺寸 2级?3级最大尺寸 2级3级 M × M3× M × M4× M × M5× M × M6× M7× M8×1M8× M9×1M9× M 10 × M 10 ×1M 10 × M 11 ×1M 11 × M 12 × M 12 × M 12 ×1 8
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