6. Диаметры предварительных отверстий (для раскатывания)

Для метрических резьб

Размерность: мм.

РазмерКлассРекомендуемый диаметр отверстия, макс.Мин.Полнота резьбы (%)Средний диаметр внутренней резьбы (5H/6H), макс.Мин.
M1×0.25ISO2X0.920.8980~1000.7850.729
M1×0.25ISO3X0.910.8975~90
M1.2×0.25ISO2X1.111.0980~1000.9850.929
M1.2×0.25ISO3X1.111.0975~90
M1.4×0.3ISO2X1.301.2680~1001.1421.075
M1.4×0.3ISO3X1.311.2870~90
M1.6×0.35ISO2X1.471.4375~1001.3211.221
M1.6×0.35ISO3X1.511.4670~95
M2×0.4ISO2X1.851.8075~1001.6791.567
M2×0.4ISO3X1.891.8470~95
M2.5×0.45ISO2X2.342.2775~1002.1382.013
M2.5×0.45ISO3X2.362.3175~95
M3×0.5ISO2X2.832.7675~1002.5992.459
M3×0.5ISO3X2.842.7975~95
M3.5×0.6ISO2X3.303.2275~1003.0102.850
M3.5×0.6ISO3X3.323.2575~95
M4×0.7ISO2X3.733.6680~1003.4223.242
M4×0.7ISO3X3.773.6975~95
M5×0.8ISO2X4.684.6080~1004.3344.134
M5×0.8ISO3X4.734.6475~95
M6×1ISO2X5.605.5080~1005.1534.917
M6×1ISO3X5.645.5680~95
M8×1.25ISO2X7.527.3980~1006.9126.647
M8×1.25ISO3X7.567.4680~95
M8×1ISO2X7.607.4980~1007.1536.917
M8×1ISO3X7.647.5680~95
M10×1.5ISO2X9.389.2685~1008.6768.376
M10×1.5ISO3X9.479.3580~95
M10×1.25ISO2X9.529.3880~1008.9128.647
M10×1.25ISO3X9.559.4580~95
M12×1.75ISO2X11.2711.1385~10010.44110.106
M12×1.75ISO3X11.3211.2385~95
M12×1.5ISO2X11.4211.2585~10010.67610.376
M12×1.5ISO3X11.4511.3380~95
M12×1.25ISO2X11.5111.3780~10010.91210.647
M12×1.25ISO3X11.5411.4380~95
M14×2ISO2X13.1713.0085~10012.21011.835
M14×2ISO3X13.213.185~95
M14×1.5ISO2X13.3613.2385~10012.67612.376
M14×1.5ISO3X13.4413.3280~95
M16×2ISO2X15.1715.0085~10014.21013.835
M16×2ISO3X15.215.0985~95
M16×1.5ISO2X15.3515.2385~10014.67614.376
M16×1.5ISO3X15.4315.3180~95