攻牙底孔参数

攻牙底孔的使用参数表 一、螺紋下孔徑表 1、公制粗牙螺紋                      JIS B 0209-1982(單位：mm) 螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑 最小直径 最大直径 M 1 × 0.25 0.75 0.78 (80%) 0.729 0.785 1.1 × 0.25 0.85 0.88 (80%) 0.829 0.885 1.2 × 0.25 0.95 0.98 (80%) 0.929 0.985 1.4 × 0.3 1.1 1.14 (80%) 1.075 1.142 1.6 × 0.35 1.25 1.32 (75%) 1.221 1.321 1.8 × 0.35 1.45 1.52 (75%) 1.421 1.521 2 × 0.4 1.6 1.65 (80%) 1.567 1.679 2.2 × 0.45 1.75 1.83 (75%) 1.713 1.838 2.5 × 0.45 2.1 2.13 (75%) 2.013 2.138 3 × 0.5 2.5 2.59 (75%) 2.459 2.599 3.5 × 0.6 2.9 3.01 (75%) 2.850 3.010 4 × 0.7 3.3 3.39 (80%) 3.242 3.422 4.5 × 0.75 3.8 3.85 (80%) 3.688 3.878 5 × 0.8 4.2 4.31 (80%) 4.134 4.334 6 × 1 5 5.13 (80%) 4.917 5.153 7 × 1 6 6.13 (80%) 5.917 6.153 8 × 1.25 6.8 6.85 (85%) 6.647 6.912 9 × 1.25 7.8 7.85 (85%) 7.647 7.912 10 × 1.5 8.5 8.62 (85%) 8.376 8.676 11 × 1.5 9.5 9.62 (85%) 9.376 9.676 12 × 1.75 10.3 10.40 (85%) 10.106 10.441 14 × 2 12 12.2 (85%) 11.835 12.210 16 × 2 14 14.2 (85%) 13.835 14.210 18 × 2.5 15.5 15.7 (85%) 15.294 15.744 20 × 2.5 17.5 17.7 (85%) 17.294 17.744 22 × 2.5 19.5 19.2 (85%) 19.294 19.744 24 × 3 21 21.2 (85%) 20.752 21.252 27 × 3 24 24.2 (85%) 23.752 24.252 30 × 3.5 26.5 26.6 (90%) 26.211 26.771 33 × 3.5 29.5 29.6 (90%) 29.211 29.771 36 × 4 32 32.1 (90%) 31.670 32.270 39 × 4 35 35.1 (90%) 34.670 35.270 42 × 4.5 37.5 37.6 (90%) 37.129 37.799 45 × 4.5 40.5 40.6 (90%) 40.129 40.799 48 × 5 43 43.1 (90%) 42.587 43.297           註(1)M1.4以下等級：5H、M1.6以上等級：6H  (2)基於JIS B 0209-1982標準 2、公制細牙螺紋-01                          JIS B 0211-1982(單位：mm) 螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑 最小直径 最大直径 M 2.5 × 0.35 2.2 2.22 (75%) 2.121 2.221 3 × 0.35 2.7 2.72 (75%) 2.621 2.721 3.5 × 0.35 3.2 3.22 (75%) 3.121 3.221 4 × 0.5 3.5 3.59 (75%) 3.459 3.599 4.5 × 0.5 4 4.09 (75%) 3.959 4.099 5 × 0.5 4.5 4.59 (75%) 4.459 4.599 5.5 × 0.5 5 5.09 (75%) 4.959 5.099 6 × 0.75 5.3 5.35 (80%) 5.188 5.378 7 × 0.75 6.3 6.35 (80%) 6.188 6.378 8 × 1 7 7.13 (80%) 6.917 7.153 8 × 0.75 7.3 7.35 (80%) 7.188 7.378 9 × 1 8 8.13 (80%) 7.917 8.153 9 × 0.75 8.3 8.35 (80%) 8.188 8.378 10 × 1.25 8.8 8.85 (85%) 8.647 8.912 10 × 1 9 9.13 (80%) 8.917 9.153 10 × 0.75 9.3 9.35 (80%) 9.188 9.378 11 × 1 10 10.13 (80%) 9.917 10.153 11 × 0.75 10.3 10.35 (80%) 10.188 10.378 12 × 1.5 10.5 10.62 (85%) 10.376 10.676 12 × 1.25 10.8 10.85 (85%) 10.647 10.912 12 × 1 11 11.13 (80%) 10.917 11.153 14 × 1.5 12.5 12.62 (85%) 12.376 12.676 14 × 1 13 13.13 (80%) 12.917 13.153 15 × 1.5 13.5 13.62 (85%) 13.376 13.676 15 × 1 14 14.13 (80%) 13.917 14.153 16 × 1.5 14.5 14.62 (85%) 14.376 14.676 16 × 1 15 15.13 (80%) 14.917 15.153 17 × 1.5 15.5 15.62 (85%) 15.376 15.676 17 × 1 16 16.13 (80%) 15.917 16.153 18 × 2 16 16.2 (85%) 15.835 16.210 18 × 1.5 16.5 16.62 (85%) 16.376 16.676 18 × 1 17 17.13 (80%) 16.917 17.153 20 × 2 18 18.2 (85%) 17.835 18.210 20 × 1.5 18.5 18.62 (85%) 18.376 18.676 20 × 1 19 19.13 (80%) 18.917 19.153 22 × 2 20 20.2 (85%) 19.835 20.210 22 × 1.5 20.5 20.62 (85%) 20.376 20.676 22 × 1 21 21.13 (80%) 20.917 21.153 24 × 2 22 22.2 (85%) 21.835 22.210 24 × 1.5 22.5 22.62 (85%) 22.376 22.676 24 × 1 23 23.13 (80%) 22.917 23.153 25 × 2 23 23.2 (85%) 22.835 23.210 25 × 1.5 23.5 23.62 (85%) 23.376 23.676 25 × 1 24 24.13 (80%) 23.917 24.153           公制細牙螺紋-02                                JIS B 0211-1982(單位：mm) 螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑 最小直径 最大直径 M 26 × 1.5 24.5 24.62 (85%) 24.376 24.676 27 × 2 25 25.2 (85%) 24.835 25.210 27 × 1.5 25.5 25.62 (85%) 25.376 25.676 27 × 1 26 26.13 (80%) 25.917 26.153 28 × 2 26 26.2 (85%) 25.835 26.210 28 × 1.5 26.5 26.62 (85%) 26.376 26.676 28 × 1 27 27.13 (80%) 26.917 27.153 30 × 3 27 27.2 (85%) 26.752 27.252 30 × 2 28 28.2 (85%) 27.835 28.210 30 × 1.5 28.5 28.62 (85%) 28.376 28.676 30 × 1 29 29.13 (80%) 28.917 29.153 32 × 2 30 30.2 (85%) 29.835 30.210 32 × 1.5 30.5 30.62 (85%) 30.376 30.676 33 × 3 30 30.2 (85%) 29.752 30.252 33 × 2 31 31.2 (85%) 30.835 31.210 33 × 1.5 31.5 31.62 (85%) 31.376 31.676 35 × 1.5 33.5 33.62 (85%) 33.376 33.676 36 × 3 33 33.2 (85%) 32.752 33.252 36 × 2 34 34.2 (85%) 33.835 34.210 36 × 1.5 34.5 34.62 (85%) 34.376 34.676 38 × 1.5 36.5 36.62 (85%) 36.376 36.676 39 × 3 36 36.2 (85%) 35.752 36.252 39 × 2 37 37.2 (85%) 36.835 37.210 39 × 1.5 37.5 37.62 (85%) 37.376 37.676 40 × 3 37 37.2 (85%) 36.752 37.252 40 × 2 38 38.2 (85%) 37.835 38.210 40 × 1.5 38.5 38.62 (85%) 38.376 38.676 42 × 4 38 38.1 (90%) 37.670 38.270 42 × 3 39 39.2 (85%) 38.752 39.252 42 × 2 40 40.2 (85%) 39.835 40.210 42 × 1.5 40.5 40.62 (85%) 40.376 40.676 45 × 4 41 41.1 (90%) 40.670 41.270 45 × 3 42 42.2 (85%) 41.752 42.252 45 × 2 43 43.2 (85%) 42.835 43.210 45 × 1.5 43.5 43.62 (85%) 43.376 43.676 48 × 4 44 44.1 (90%) 43.670 44.270 48 × 3 45 45.2 (85%) 44.752 45.252 48 × 2 46 46.2 (85%) 45.835 46.210 48 × 1.5 46.5 46.62 (85%) 46.376 46.676 50 × 3 47 47.2 (85%) 46.752 47.252 50 × 2 48 48.2 (85%) 47.835 48.210 50 × 1.5 48.5 48.62 (85%) 48.376 48.676           註(1)等級：6H (2)基於JIS B 0211-1982標準 3、美制粗牙螺紋                              (單位：mm) 螺纹尺寸 钻头直径 2B级螺纹下孔徑 內螺紋小徑 最小直径 最大直径 NO.1 -64UNC 1.55 1.57 (65%) 1.425 1.582 2 -56 1.8 1.86 (65%) 1.695 1.871 3 -48 2.1 2.14 (65%) 1.941 2.146 4 -40 2.3 2.36 (70%) 2.157 2.385 5 -40 2.6 2.69 (70%) 2.487 2.697 6 -32 2.8 2.86 (75%) 2.642 2.895 8 -32 3.4 3.52 (75%) 3.302 3.530 10 -24 3.9 3.91 (80%) 3.683 3.962 12 -24 4.5 4.57 (80%) 4.344 4.597 1/4 -20 5.1 5.25 (80%) 4.979 5.257 5/16 -18 6.6 6.72 (80%) 6.401 6.731 3/8 -16 8 8.15 (80%) 7.798 8.153 7/16 -14 9.4 9.50 (80%) 9.144 9.550 1/2 -13 10.8 11.0 (80%) 10.592 11.023 9/16 -12 12.2 12.3 (85%) 11.989 12.446 5/8 -11 13.6 13.8 (85%) 13.386 13.868 3/4 -10 16.5 16.8 (80%) 16.307 16.840 7/8 - 9 19.5 19.6 (85%) 19.177 19.761 1 - 8 22.2 22.5 (85%) 21.971 22.606 1 1/8 - 7 25 25.2 (85%) 24.638 25.349 1 1/4 - 7 28.2 28.4 (85%) 27.813 28.524 1 3/8 - 6 30.8 31.0 (85%) 30.353 31.115 1 1/2 - 6 34 34.2 (85%) 33.528 34.290 1 3/4 - 5 39.5 39.8 (85%) 38.964 39.827 2 - 4 45.2 45.3 (90%) 44.679 45.593           4、美制細牙螺紋                                    (單位：mm) 螺纹尺寸 钻头直径 2B级螺纹下孔徑 內螺紋小徑 最小直径 最大直径 NO. 0 -80UNF 1.25 1.30 (65%) 1.182 1.305 1 -72 1.55 1.61 (65%) 1.474 1.612 2 -64 1.85 1.90 (65%) 1.756 1.912 3 -56 2.1 2.17 (70%) 2.025 2.197 4 -48 2.4 2.44 (70%) 2.271 2.458 5 -44 2.7 2.74 (70%) 2.551 2.740 6 -40 2.9 3.02 (70%) 2.820 3.022 8 -36 3.5 3.59 (75%) 3.404 3.606 10 -32 4.1 4.14 (80%) 3.963 4.165 12 -28 4.6 4.70 (80%) 4.496 4.724 1/4 -28 5.5 5.56 (80%) 5.360 5.588 5/16 -24 6.9 7.02 (80%) 6.782 7.035 3/8 -24 8.5 8.61 (80%) 8.382 8.636 7/16 -20 9.9 10.01 (80%) 9.729 10.033 1/2 -20 11.5 11.60 (80%) 11.329 11.607 9/16 -18 12.9 13.07 (80%) 12.751 13.081 5/8 -18 14.5 14.65 (80%) 14.351 14.681 3/4 -16 17.5 17.59 (85%) 17.323 17.678 7/8 -14 20.5 20.6 (85%) 20.270 20.675 1 -12 23.2 23.5 (85%) 23.114 23.571 1 1/8 -12 26.5 26.7 (80%) 26.289 26.746 1 1/4 -12 29.5 29.9 (80%) 29.464 29.921 1 3/8 -12 32.8 33.0 (85%) 32.639 33.096 1 1/2 -12 36 36.2 (85%) 35.814 36.271