m70的标准螺距
标准螺纹螺距对照表 螺纹 M1 M1.1 M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52) M56 (M60) M64 (M68) M72 (M76) M80 粗牙0.25 0.25 0.35 0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5 5.5 5.5 6 6 6 6 6 细牙0.2 0.2 0.2 0.25 0.35 0.35 0.5 0.5 0.75, (0.5) 1, 0.75, (0.5) 1.25, 1, 0.75, (0.5) 1.5, 1.25, 1, (0.75), (0.5) 1.5, 1.25, 1, (0.75), (0.5) 1.5, 1.25, 1, (0.75), (0.5) 2, 1.5, 1.25, 1, (0.75), (0.5) 2, 1.5, 1.25, 1, (0.75), (0.5) 2, 1.5, 1.25, 1, (0.75), (0.5) 2, 1.5, 1, (0.75) 2, 1.5, 1, (0.75) 3, 2, 1.5, 1, (0.75) (3), 2, 1.5, 1, (0.75) 3, 2, 1.5, (1) 3, 2, 1.5, (1) (4), 3, 2, 1.5, (1) (4), 3, 2, 1.5, (1) (4), 3, 2, 1.5, (1) (4), 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1) 4, 3, 2, 1.5, (1)
"长的牙数 外螺纹大径公差 内螺纹小径公差 序号 φ 3.8-0.05 φ 4.8±0.1 φ 5.8±0.1 φ 7.7 φ 9.7 φ 11.6 φ 7.7 φ 9.7 φ 10.7 φ 11.7 φ 13.7 φ 15.7 φ 17.7 φ 19.7 φ 21.7 φ 23.7 φ 25.7 φ 27.7 φ 22.7 φ 31.7 φ 33.7 φ 11.7 φ 13.7 φ 15.7 φ 17.7 φ 19.7 φ 21.7 φ 23.7 φ 24.7 φ 25.7 φ 26.7 φ 27.7 φ 29.7 φ 30.7 φ 31.7 φ 32.7 φ 33.7 φ 34.7 φ 35.7 φ 37.7 φ 38.7 φ 39.7 φ 40.7 φ 41.7 φ 44.7 φ 47.7 φ 48.7 φ 36.7 φ 41.7 φ 17.7 +0.1 螺纹规格 G1/2需要电镀 G1/2不需电镀 G3/4需要电镀 G3/4不需电镀 G1需要电镀 G1不需电镀 5/16""-18BSW G1/8"" G1/4 5/16""(1/2""-20UNF) 1/4""-18NPSM G17/32"" 9/16-24UNF 3/8""-18UNF G3/8"" G5/8"" 13/16-18UNS 1/2""-14NPT 15/16-14UNS 7/8""-14UNF 3/4""-11.5NH 17/16-14UNS 3/4""-14NPT 9/8""-18UNEF G9/8"" G1"" 1""-11.5 NPSM 60° G5/4"" 5/4""-11.5NPT 3/2""-11.5NPSM G3/2"" 3/2""-11.5NPSM 3/2""-11.5NPT 2""-11.5NPSM 3/4""-11.5 60° 1/2""-14NPSM 25.4mm"