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常用公制螺纹钻孔底径表 普通切削 螺纹规格 丝锥 钻头 孔 直径 径M1×0.25 φ0.75 M1.4×0.3 φ1.1 M1.7×0.35 φ1.35 M2×0.4 φ1.6 0.729 ~ 0.785 1.075 ~ 1.142 1.321 ~ 1.421 1.567 ~ 1.679 1.867 ~ 1.979 2.013 ~ 2.138 2.280 ~ 2.440 2.482.59 2.850 ~ 挤牙丝锥(非圆丝锥 钻头直径孔径(一级螺纹) 孔径(二级螺 纹) M2.3×0.4 φ1.9 M2.5×0.45 φ2.1 M3×0.5 φ2.4 φ1.244~ φ1.270~ 1.263 φ1.294 φ1.51~ φ1.54~ φ1.54 φ1.58 φ1.78~ φ1.81~ φ1.82 φ1.85 φ2.08~ φ2.11~ φ2.12 φ2.15 φ2.25~ φ2.28~ φ2.39 φ2.43 φ2.74~ φ2.76~ φ2.78 φ2.81 φ3.18~ φ3.20~ M3.5×0.6 φ2.9 3.010 φ3.21 φ3.63~ φ3.67 φ3.26 φ3.65~ φ3.70 M4×0.7 φ3.25 M4×0.75 φ3.3 M5×0.9 M5×0.8 M6×1 M7×1 φ4.1 φ4.2 φ5 φ6 3.106 ~ 3.326 3.242 ~ 3.422 3.930 ~ 4.170 4.134 ~ 4.334 4.917~ 5.153 5.917 ~ 6.153 6.647 ~ 6.912 6.917 ~ 7.153 8.376 ~ 8.676 8.647 ~ 8.912 M8×1.25 φ6.8 M8×1 φ7 M10×1.5 φ8.5 M10×1.25 φ8.8 φ4.57~ φ4.62 φ5.45~ φ5.51 φ6.45~ φ6.51 φ7.31~ φ7.38 φ7.45~ φ7.51 φ9.16~ φ9.22 φ9.31~ φ9.38 φ4.59~ φ4.66 φ5.48~ φ5.57 φ6.48~ φ6.57 φ7.34~ φ7.41 φ7.48~ φ7.57 φ9.18~ φ9.28 φ9.34~ φ9.41 M10×1 φ9 8.917 ~ 9.153 10.106 ~
螺纹中径对照表 公制螺纹 基本直径 内螺纹公差等级 外螺纹 大 中径 小径 6H 7H 6G 径中径公小径公中径公小径公中径公差 差差0,差差09.35 8.917 0,+0.150 0,+0.236 0,+0.190 0,+0.300 -0.026,-0.138 2 11.35 10.917 0,+0.160 0,+0.236 0,+0.200 0,+0.300 -0.026,-0.144 4 13.35 122.917 0,+0.160 0,+0.236 0,+0.200 0,+0.300 -0.026,-0.144 2 11.188 10.647 0,+0.180 0,+0.265 0,+0.224 0,+0.335 -0.028,-0.160 4 13.188 12.647 0,+0.180 0,+0.265 0,+0.224 0,+0.335 -0.028,-0.160 2 11.026 10.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 4 13.026 12.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 6 15.026 14.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 8 17.026 16.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 0 19.026 18.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 2 21.026 20.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 4 23.026 22.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 6 25.026 24.376 0,+0.200 0,+0.300 0,+0.250 0,+0.375 -0.032,-0.182 7 26.026 25.376 0,+0.200 0,+0.3
. 公制螺纹 基本直径 内螺纹公差等级 外螺纹公差 大 中径 小径 6H 7H 6G 径 中径公差 小径公差 中径公 0, 小径公差 中径公差 小径公差 差M10*1 10 9.35 8.917 0,+0.150 0,+0.236 0,+0.190 0,+0.300 -0.026,-0.138 -0.026,0.206 M12*1 12 11.35 10.917 0,+0.160 0,+0.236 0,+0.200 0,+0.300 -0.026,-0.144 -0.026,0.206 M14*1 14 13.35 122.917 0,+0.160 0,+0.236 0,+0.200 0,+0.300 -0.026,-0.144 -0.026,0.206 M12*1.25 12 11.188 10.647 0,+0.180 0,+0.265 0,+0.224 0,+0.335 -0.028,-0.160 -0.028,-0.240 M14*1.25 14 13.188 12.647 0,+0.180 0,+0.265 0,+0.224 0,+0.335 -0.028,-0.160 -0.028,-0.240 M12*1.5 12 11.026 10.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 -0.032,-0.268 M14*1.5 14 13.026 12.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 -0.032,-0.268 M16*1.5 16 15.026 14.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 -0.032,-0.268 M18*1.5 18 17.026 16.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 -0.032,-0.268 M20*1.5 20 19.026 18.376 0,+0.190 0,+0.300 0,+0.236 0,+0.375 -0.032,-0.172 -0.032,-0.268 M22*1.5 22 21.02
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普通螺纹标准规格表 普通螺纹基本尺寸(mm) 公称 直径 2 2.5 3 4 5 6 8 8 10 10 10 12 12 12 (14) (14) 16 16 (18) 20 20 20 22 (22) 24 螺距 p 0.4 0.45 0.5 0.7 0.8 1 1 1.25 1 1.25 1.5 1.25 1.5 1.75 1.5 2 1.5 2 2.5 1.5 2 2.5 1.5 2.5 2 中径 1.740 2.208 2.675 3.545 4.480 5.350 7.350 7.188 9.350 9.188 9.026 11.188 11.026 10.863 13.026 12.701 15.026 14.701 16.376 19.026 18.701 18.376 21.026 20.376 22.701 小径 1.567 2.013 2.459 3.242 4.134 4.917 6.917 6.647 8.917 8.647 8.376 10.647 10.376 10.106 12.376 11.835 14.376 13.835 15.294 18.376 17.835 17.294 20.376 19.294 21.835 普通螺纹基本尺寸(mm) 公称 直径 24 (27) (27) 30 30 (33) (33) 36 36 (39) (39) 42 42 (45) (45) 48 48 (52) (52) 56 56 (60) (60) 64 64 螺距 p 3 2 3 2 3.5 2 3.5 3 4 3 4 3 4.5 3 4.5 3 5 4 5 4 4.5 4 5.5 4 6 中径 22.051 25.701 25.051 28.701 27.727 31.701 30.727 34.051 33.042 37.051 36.042 40.051 39.077 43.051 42.077 46.051 44.752 49.402 48.752 53.402 52.428 57.402 56.428 61.402 60.103 小径 20.752 24.835 23.752 27.835 26.211 30.835 29.211 32.752 31.670 35.752 34.670 38.752 37.129 41.752
普通螺纹标准规格表 普通螺纹基本尺寸(mm) 公称 直径 2 2.5 3 4 5 6 8 8 10 10 10 12 12 12 (14) (14) 16 16 (18) 20 20 20 22 (22) 24 螺距 p 0.4 0.45 0.5 0.7 0.8 1 1 1.25 1 1.25 1.5 1.25 1.5 1.75 1.5 2 1.5 2 2.5 1.5 2 2.5 1.5 2.5 2 中径 1.740 2.208 2.675 3.545 4.480 5.350 7.350 7.188 9.350 9.188 9.026 11.188 11.026 10.863 13.026 12.701 15.026 14.701 16.376 19.026 18.701 18.376 21.026 20.376 22.701 小径 1.567 2.013 2.459 3.242 4.134 4.917 6.917 6.647 8.917 8.647 8.376 10.647 10.376 10.106 12.376 11.835 14.376 13.835 15.294 18.376 17.835 17.294 20.376 19.294 21.835 普通螺纹基本尺寸(mm) 公称 直径 24 (27) (27) 30 30 (33) (33) 36 36 (39) (39) 42 42 (45) (45) 48 48 (52) (52) 56 56 (60) (60) 64 64 螺距 p 3 2 3 2 3.5 2 3.5 3 4 3 4 3 4.5 3 4.5 3 5 4 5 4 4.5 4 5.5 4 6 中径 22.051 25.701 25.051 28.701 27.727 31.701 30.727 34.051 33.042 37.051 36.042 40.051 39.077 43.051 42.077 46.051 44.752 49.402 48.752 53.402 52.428 57.402 56.428 61.402 60.103 小径 20.752 24.835 23.752 27.835 26.211 30.835 29.211 32.752 31.670 35.752 34.670 38.752 37.129 41.752
公制 外螺 公称直径× 螺纹精 螺距 度等级 M3×0.5 M4×0.7 M5×0.8 M6×1 M8×1.25 M10×1.5 M12×1.75 6g M14×2 M16×2 M18×2.5 M20×2.5 M22×2.5 M24×3 M27×3 1.