1、常用三角螺纹螺距（粗牙、细牙）对照表 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),
2、 (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) 待 待 待
