螺纹底径表和牙距.pdf

螺紋下孔徑表 螺紋下孔徑表 公制粗牙螺紋公制粗牙螺紋 JIS B 0209-1982(單位：單位：mm)崁合度區分：中(註 1)2 級(註 2)內螺紋小徑 螺紋尺寸 鑽頭直徑 崁合度區分：中(注 1)2 級(注 2)下孔徑 最小直徑 最大直徑 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 螺紋下孔徑表 螺紋下孔徑表 公制細牙螺紋公制細牙螺紋 JIS B 0211-1982(單位：單位：mm)崁合度區分：中(註 1)2 級(註 2)內螺紋小徑 螺紋尺寸 鑽頭直徑 崁合度區分：中(注 1)2 級(注 2)下孔徑 最小直徑 最大直徑 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 螺紋下孔徑表 螺紋下孔徑表 公制細牙螺紋公制細牙螺紋 JIS B 0211-1982(單位：單位：mm)崁合度區分：中(註 1)2 級(註 2)內螺紋小徑 螺紋尺寸 鑽頭直徑 崁合度區分：中(注 1)2 級(注 2)下孔徑 最小直徑 最大直徑 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 螺紋下孔徑表 螺紋下孔徑表 美制粗牙螺紋美制粗牙螺紋 (單位：單位：mm)內 螺 紋 小 徑 螺紋尺寸 鑽頭直徑 2B 級 螺 紋 下 孔 徑 最小直徑 最大直徑 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 螺紋下孔徑表 螺紋下孔徑表 美制細牙螺紋美制細牙螺紋 (單位：單位：mm)內 螺 紋 小 徑 螺紋尺寸 鑽頭直徑 2B 級 螺 紋 下 孔 徑 最小直徑 最大直徑 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 -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 螺紋下孔徑表 螺紋下孔徑表 縫紉機螺紋縫紉機螺紋(SM)(單位：單位：mm)2 級 內 螺 紋 小 徑 螺紋尺寸 鑽頭直徑 2B 級 螺 紋 下 孔 徑 最小直徑 最大直徑 SM 1/16 -80 1.25 1.28 (75%)1.211 1.281 5/64 -64 1.55 1.57 (80%)1.513 1.593 3/32 -100 2.10 2.15 (70%)2.081 2.156 3/32 -56 1.85 1.91 (80%)1.841 1.936 1/8 -44 2.50 2.58 (80%)2.485 2.605 1/8 -40 2.45 2.52 (80%)2.421 2.551 9/64 -40 2.85 2.91 (80%)2.818 2.948 11/64 -40 3.65 3.71 (80%)3.612 3.742 3/16 -32 3.90 3.94 (80%)3.820 3.980 3/16 -28 3.70 3.82 (80%)3.684 3.844 7/32 -32 4.70 4.73 (80%)4.614 4.774 15/64 -28 4.90 5.01 (80%)4.875 5.055 1/4 -40 5.60 5.69 (80%)5.596 5.726 1/4 -28 5.30 5.41 (80%)5.272 5.452 縫紉機螺紋縫紉機螺紋(SM)(單位：單位：mm)2 級 內 螺 紋 小 徑 螺紋尺寸 鑽頭直徑 2B 級 螺 紋 下 孔 徑 最小直徑 最大直徑 SM 1/4 -24 5.10 5.25 (80%)5.086 5.266 9/32 -28 6.10 6.20 (80%)6.066 6.256 9/32 -20 5.70 5.82 (80%)5.634 5.824 5/16 -28 6.90 6.00 (80%)6.860 7.050 5/16 -24 6.70 6.84 (80%)6.674 6.864 5/16 -18 6.30 6.38 (85%)6.254 6.444 3/8 -28 8.50 8.58 (80%)8.447 8.637 3/8 -18 7.90 7.97 (85%)7.843 8.053 7/16 -28 10.10 10.17 (80%)10.034 10.224 7/16 -16 9.30 9.36 (85%)9.220 9.440 1/2 -28 11.70 11.76 (80%)11.622 11.812 1/2 -20 11.30 11.38 (80%)11.190 11.410 1/2 -12 10.30 10.36 (85%)10.180 10.420 螺紋下孔徑表 螺紋下孔徑表 英制粗牙螺紋英制粗牙螺紋 (單位：單位：mm)下 孔 徑 嵌 合 率 螺紋尺寸 A 列(硬材質)B 列(軟材質)A 列直徑B 列直徑內螺紋最小徑 內螺紋最大徑 W 1/8 2.6 2.5 70.7 83.0 70.0 88.3 3/16 3.7 3.6 78.4 85.8 70.0 88.3 1/4 5.1 5.0 76.9 83.0 70.5 88.3 5/16 6.6 6.5 74.0 99.5 70.1 88.4 3/8 8.0 7.9 75.0 80.0 69.5 88.2 7/16 9.4 9.3 73.7 80.0 69.0 88.8 1/2 10.7 10.5 73.8 81.2 69.0 88.2 9/16 12.3 12.0 73.4 84.4 69.0 88.2 5/8 13.7 13.5 73.5 80.3 69.6 88.5 3/4 16.7 16.5 72.3 78.4 69.6 88.3 7/8 19.5 19.3 75.4 80.9 70.1 88.4 1 22.4 22.0 73.8 83.6 71.0 88.2 1 1/8 25.0 24.8 76.9 81.3 72.0 88.4 1 1/4 28.3 28.0 74.3 80.7 72.0 88.4 1 3/8 30.5 30.3 81.6 85.3 73.8 88.6 1 1/2 33.8 33.5 79.3 84.8 73.8 88.6 1 5/8 36.0 35.7 81.1 85.7 74.8 88.3 1 3/4 39.2 39.0 80.7 83.8 74.8 88.3 1 7/8 41.8 41.5 80.6 84.7 74.7 88.4 2 45.0 44.7 80.2 84.4 74.7 88.4 螺紋下孔徑螺紋下孔徑英制管用螺紋英制管用螺紋 (單位：單位：mm)JIS B 0203 JIS B 2301 錐管內螺紋 Rc(PT)平行內螺紋 Rp(PS)錐管內螺紋 管用螺紋尺寸 計 算 值 下 孔 徑計 算 值 下 孔 徑計 算 值 下 孔 徑 1/16 6.230 6.2 6.490 6.5 1/8 8.235 8.2 8.495 8.5 8.191 8.2 1/4 10.941 10.9 11.341 11.4 10.945 10.9 3/8 14.428 14.4 14.846 14.9 14.388 14.4 1/2 17.950 18 18.489 18.5 17.943 18 3/4 23.349 23 23.975 24 23.305 23 1 29.423 29 30.111 30 29.353 29 1 1/4 37.940 38 38.772 39 37.890 38 1 1/2 43.833 44 44.565 45 43.720 43 2 55.412 55 56.476 56 55.406 55 2 1/2 70.701 71 72.009 72 70.788 70 3 83.201 83 84.709 85 83.364 83 3 1/2 95.547 96 97.155 97 95.747 95 4 107.834 108 109.855 110 108.322 108 5 133.110 133 135.255 135 133.597 133 6 158.510 159 160.655 161 158.810 158 7 183.360 183 185.954 186 8 208.560 209 211.354 212 9 233.960 234 236.754 237 10 259.166 259 262.154 262 12 309.747 310 312.875 313 1982 年由於 ISO 進入，JIS 管用螺紋規格得到修訂，螺紋代號有了變更，但螺紋精度沒有改變。因此絲攻的名稱還是延用了舊代號。JIS B 0202-1982 JIS B 0203-1982 總總 類類 舊舊 記記 號號 新新 記記 號號 耐密用斜行母螺紋耐密用斜行母螺紋 PT Rc 耐密用平行母螺紋耐密用平行母螺紋 PS Rp 機械連結用平行母螺紋機械連結用平行母螺紋 PF G