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挤压丝锥螺纹底孔直径
挤压丝锥螺纹底孔直径
螺纹公称尺寸(M×P) 推荐钻头直径(∮Dmm)最小直径(∮Dmm)最大直径(∮Dmm) M2×0.4 1.83 1.81 1.85
M2.2×0.452 1.98 2.03
M2.5×0.45 2.3 2.28 2.33
M3×0.5 2.78 2.76 2.81
M4×0.7 3.68 3.65 3.7
M5×0.8 4.63 4.59 4.66
M6×1 5.53 5.48 5.57
M7×1 6.53 6.48 6.57
M8×17.537.487.57
M8×1.257.397.347.41
M10×19.539.489.57
M10×1.59.249.189.28
M10×1.259.399.349.41
M12×1.2511.3911.3411.41
M12×1.511.2411.1811.28
M12×1.7511.1211.0511.15
M14×1.513.2713.2113.3
M14×21312.9213.04
M16×1.515.2715.2115.3
M16×21514.9215.04
M18×1.517.2817.2217.31
M18×2.516.7316.6316.78
M20×119.2819.2219.31
M20×2.518.7318.6318.78
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