梯形螺纹(内外螺纹)基本尺寸表螺距2-24
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梯形螺纹（内外螺纹）基本尺寸表
外螺纹 公称 名义 螺距 小径（ d3) 中径(d2) 直径 中径 大径(d) 大径 （P) (d) （d2) 最小 最大 3s级最小 2 3级最大 3级最小 D4 10 12 14 16 18 20 22 24 26 28 10 12 14 30 32 34 36 38 40 42 44 46 48 50 52 55 60 16 18 20 65 70 75 80 22 24 26 28 85 90 95 100 110 9.0 11.0 13.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0 8.5 10.5 12.5 28.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 50.5 53.5 58.5 14.0 16.0 18.0 63.0 68.0 73.0 78.0 19.5 21.5 23.5 25.5 82.5 87.5 92.5 97.5 107.5 9.9 11.9 13.9 15.9 17.9 19.5 21.9 23.9 25.9 27.9 9.85 11.85 13.85 29.85 31.85 33.85 35.85 37.85 39.85 41.85 43.85 45.85 47.85 49.85 51.85 54.85 59.85 15.80 17.80 19.80 64.80 69.80 74.80 79.80 21.75 23.75 25.75 27.75 84.75 89.75 94.75 99.75 7.5 9.5 11.5 13.5 15.5 17.5 19.5 20.5 23.5 25.5 6.5 8.5 10.5 26.5 28.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 51.5 56.5 11.5 13.5 15.5 60.5 65.5 70.5 75.5 16.0 18.0 20.0 22.0 79.0 84.0 89.0 94.0 7.040 9.040 11.040 13.040 15.015 17.000 19.015 21.015 23.015 25.015 5.970 7.970 9.970 25.915 27.915 29.915 31.915 33.915 35.915 37.915 39.915 41.905 43.905 45.905 47.905 50.905 55.905 10.873 12.873 14.873 59.790 64.790 69.790 74.790 15.280 17.280 19.280 21.280 78.200 83.200 88.200 93.200 103.200 8.966 10.966 12.966 14.966 16.966 18.000 20.966 22.966 24.966 26.966 8.463 10.463 12.463 28.463 30.463 32.463 34.463 36.463 38.463 40.463 42.463 44.463 46.463 48.463 50.463 53.463 58.463 13.955 15.955 17.955 62.955 67.955 72.955 77.955 19.448 21.448 23.448 25.448 82.448 87.448 92.448 97.448 107.000 8.540 10.540 12.540 14.540 16.515 18.515 20.515 22.515 24.515 26.515 7.970 9.970 11.970 27.915 29.915 31.915 33.915 35.915 37.915 39.915 41.915 43.905 45.905 47.905 49.905 52.905 57.905 13.373 15.373 17.373 62.290 67.290 72.290 77.290 18.780 20.780 22.780 24.780 81.700 86.700 91.700 96.700 106.700 10.5 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 28.5 10.5 12.5 14.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 50.5 52.5 55.5 60.5 16.5 18.5 20.5 65.5 70.5 75.5 80.5 23.0 25.0 27.0 29.0 86.0 91.0 96.0 101 111 内螺纹 小径(D1) 最小 8 10 12 14 16 18 20 22 24 26 7 9 11 27 29 31 33 35 37 39 41 43 45 47 49 52 57 12 14 16 61 66 71 76 17 19 21 23 80 85 90 95 105 最大 8.10 10.10 12.10 14.10 16.10 18.10 20.10 22.10 24.10 26.10 7.15 9.15 11.15 27.15 29.15 31.15 33.15 35.15 37.15 39.15 41.15 43.15 45.15 47.15 49.15 52.15 57.15 12.20 14.20 16.20 61.20 66.20 71.20 76.20 17.25 19.25 21.25 23.25 80.25 85.25 90.25 95.25 中径（D2) 2级最大 9.262 11.262 13.262 15.262 17.280 19.280 21.280 23.280 25.280 27.280 8.795 10.795 12.795 28.855 30.855 32.855 34.855 36.855 38.855 40.855 42.855 44.855 46.855 48.855 50.855 53.855 58.855 14.355 16.355 18.355 63.418 68.418 73.418 78.418 19.910 21.910 23.910 25.910 82.978 87.978 92.978 97.978 3级最大 9.328 11.328 13.328 15.328 17.355 19.355 21.355 23.355 25.355 27.355 8.872 10.872 12.872 28.928 30.928 32.928 34.928 36.928 38.928 40.928 42.928 44.940 46.940 48.940 50.940 53.940 58.940 14.440 16.440 18.440 63.520 68.520 73.520 78.520 20.015 22.015 24.015 26.015 83.095 88.095 93.095 98.095 108.095
2
3
4
5
109.75 104.0
105.25 107.978
梯形螺纹（内外螺纹）基本尺寸表
外螺纹 公称 名义 螺距 直径 中径 （P) (d) （d2) 内螺纹
公称 名义 螺距 直径 中径 大径(d) （P) (d) （d2) 最小 30 32 34 36 38 40 42 120 130 140 150 22 24 26 28 44 46 48 50 52 55 60 160 170 180 190 30 32 34 36 38 40 42 65 70 75 80 200 210 220 27 29 31 33 35 37 39 117 127 137 147 18 20 22 24 40 42 44 46 48 51 56 156 166 176 186 25 27 29 31 33 35 37 60 65 70 75 195 205 215 29.7 31.7 33.7 35.7 37.7 39.7 41.7 119.7 129.7 139.7 149.7 21.6 23.6 25.6 27.6 43.6 45.6 47.6 49.6 51.6 54.6 59.6 159.6 169.6 179.6 189.6 29.5 31.5 33.5 35.5 37.5 39.5 41.5 64.5 69.5 74.5 79.5 199.5 209.5 219.5
小径（d3)
中径பைடு நூலகம்d2)
小径(D1) 最小 24 26 28 30 32 34 36 114 124 134 144 14 16 18 20 36 38 40 42 44 47 52 152 162 172 182 20 22 24 26 28 30 32 55 60 65 70 190 200 210 最大 24.3 26.3 28.3 30.3 32.3 34.3 36.3 114.3 124.3 134.3 144.3 14.4 16.4 18.4 20.4 36.4 38.4 40.4 42.4 44.4 47.4 52.4 152.4 162.4 172.4 182.4 20.5 22.5 24.5 26.5 28.5 30.5 32.5 55.5 60.5 65.5 70.5 190.5 200.5 210.5
大径 D4 最大 3s级最小 2 3级最大 3级最小 23 25 27 29 31 33 35 113 123 133 143 13 15 17 19 35 37 39 41 43 46 51 151 161 171 181 19 21 23 25 27 29 31 54 59 64 69 189 199 209 22.200 24.200 26.000 28.200 30.200 32.200 34.200 112.115 122.115 132.115 142.115 12.080 14.080 16.080 18.080 34.040 36.040 38.040 40.040 42.040 45.040 50.040 149.968 159.968 169.968 179.968 17.958 19.958 21.958 23.958 25.958 27.958 29.958 52.910 57.910 62.910 67.910 187.872 197.872 207.872 26.94 28.94 30.94 32.00 34.00 36.00 38.00 116.00 126.00 136.00 146.00 17.00 19.00 21.00 23.00 39.00 41.00 43.00 45.00 47.00 50.00 55.00 155.00 165.00 175.00 185.00 24.00 26.00 28.00 30.00 32.00 34.00 36.00 59.00 64.00 69.00 75.00 194.00 204.00 214.00 26.200 28.200 30.200 32.200 34.200 36.200 38.200 116.115 126.115 136.115 146.115 17.080 19.080 21.080 23.080 39.040 41.040 43.040 45.040 47.040 50.040 55.040 154.968 164.968 174.968 184.968 23.958 25.958 27.958 29.958 31.958 33.958 35.958 58.910 63.910 68.910 73.910 193.872 203.872 213.872 31 33 35 37 39 41 43 121 131 141 151 23 25 27 29 45 47 49 51 53 56 61 161 171 181 191 31 33 35 37 39 41 43 66 71 76 81 201 211 221
外螺纹 公称 名义 螺距 小径（ d3) 中径(d2) 直径 中径 大径(d) 大径 （P) (d) （d2) 最小 最大 3s级最小 2 3级最大 3级最小 D4 10 12 14 16 18 20 22 24 26 28 10 12 14 30 32 34 36 38 40 42 44 46 48 50 52 55 60 16 18 20 65 70 75 80 22 24 26 28 85 90 95 100 110 9.0 11.0 13.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0 8.5 10.5 12.5 28.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 50.5 53.5 58.5 14.0 16.0 18.0 63.0 68.0 73.0 78.0 19.5 21.5 23.5 25.5 82.5 87.5 92.5 97.5 107.5 9.9 11.9 13.9 15.9 17.9 19.5 21.9 23.9 25.9 27.9 9.85 11.85 13.85 29.85 31.85 33.85 35.85 37.85 39.85 41.85 43.85 45.85 47.85 49.85 51.85 54.85 59.85 15.80 17.80 19.80 64.80 69.80 74.80 79.80 21.75 23.75 25.75 27.75 84.75 89.75 94.75 99.75 7.5 9.5 11.5 13.5 15.5 17.5 19.5 20.5 23.5 25.5 6.5 8.5 10.5 26.5 28.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 51.5 56.5 11.5 13.5 15.5 60.5 65.5 70.5 75.5 16.0 18.0 20.0 22.0 79.0 84.0 89.0 94.0 7.040 9.040 11.040 13.040 15.015 17.000 19.015 21.015 23.015 25.015 5.970 7.970 9.970 25.915 27.915 29.915 31.915 33.915 35.915 37.915 39.915 41.905 43.905 45.905 47.905 50.905 55.905 10.873 12.873 14.873 59.790 64.790 69.790 74.790 15.280 17.280 19.280 21.280 78.200 83.200 88.200 93.200 103.200 8.966 10.966 12.966 14.966 16.966 18.000 20.966 22.966 24.966 26.966 8.463 10.463 12.463 28.463 30.463 32.463 34.463 36.463 38.463 40.463 42.463 44.463 46.463 48.463 50.463 53.463 58.463 13.955 15.955 17.955 62.955 67.955 72.955 77.955 19.448 21.448 23.448 25.448 82.448 87.448 92.448 97.448 107.000 8.540 10.540 12.540 14.540 16.515 18.515 20.515 22.515 24.515 26.515 7.970 9.970 11.970 27.915 29.915 31.915 33.915 35.915 37.915 39.915 41.915 43.905 45.905 47.905 49.905 52.905 57.905 13.373 15.373 17.373 62.290 67.290 72.290 77.290 18.780 20.780 22.780 24.780 81.700 86.700 91.700 96.700 106.700 10.5 12.5 14.5 16.5 18.5 20.5 22.5 24.5 26.5 28.5 10.5 12.5 14.5 30.5 32.5 34.5 36.5 38.5 40.5 42.5 44.5 46.5 48.5 50.5 52.5 55.5 60.5 16.5 18.5 20.5 65.5 70.5 75.5 80.5 23.0 25.0 27.0 29.0 86.0 91.0 96.0 101 111 内螺纹 小径(D1) 最小 8 10 12 14 16 18 20 22 24 26 7 9 11 27 29 31 33 35 37 39 41 43 45 47 49 52 57 12 14 16 61 66 71 76 17 19 21 23 80 85 90 95 105 最大 8.10 10.10 12.10 14.10 16.10 18.10 20.10 22.10 24.10 26.10 7.15 9.15 11.15 27.15 29.15 31.15 33.15 35.15 37.15 39.15 41.15 43.15 45.15 47.15 49.15 52.15 57.15 12.20 14.20 16.20 61.20 66.20 71.20 76.20 17.25 19.25 21.25 23.25 80.25 85.25 90.25 95.25 中径（D2) 2级最大 9.262 11.262 13.262 15.262 17.280 19.280 21.280 23.280 25.280 27.280 8.795 10.795 12.795 28.855 30.855 32.855 34.855 36.855 38.855 40.855 42.855 44.855 46.855 48.855 50.855 53.855 58.855 14.355 16.355 18.355 63.418 68.418 73.418 78.418 19.910 21.910 23.910 25.910 82.978 87.978 92.978 97.978 3级最大 9.328 11.328 13.328 15.328 17.355 19.355 21.355 23.355 25.355 27.355 8.872 10.872 12.872 28.928 30.928 32.928 34.928 36.928 38.928 40.928 42.928 44.940 46.940 48.940 50.940 53.940 58.940 14.440 16.440 18.440 63.520 68.520 73.520 78.520 20.015 22.015 24.015 26.015 83.095 88.095 93.095 98.095 108.095
2
3
4
5
109.75 104.0
105.25 107.978
梯形螺纹（内外螺纹）基本尺寸表
外螺纹 公称 名义 螺距 直径 中径 （P) (d) （d2) 内螺纹
公称 名义 螺距 直径 中径 大径(d) （P) (d) （d2) 最小 30 32 34 36 38 40 42 120 130 140 150 22 24 26 28 44 46 48 50 52 55 60 160 170 180 190 30 32 34 36 38 40 42 65 70 75 80 200 210 220 27 29 31 33 35 37 39 117 127 137 147 18 20 22 24 40 42 44 46 48 51 56 156 166 176 186 25 27 29 31 33 35 37 60 65 70 75 195 205 215 29.7 31.7 33.7 35.7 37.7 39.7 41.7 119.7 129.7 139.7 149.7 21.6 23.6 25.6 27.6 43.6 45.6 47.6 49.6 51.6 54.6 59.6 159.6 169.6 179.6 189.6 29.5 31.5 33.5 35.5 37.5 39.5 41.5 64.5 69.5 74.5 79.5 199.5 209.5 219.5
小径（d3)
中径பைடு நூலகம்d2)
小径(D1) 最小 24 26 28 30 32 34 36 114 124 134 144 14 16 18 20 36 38 40 42 44 47 52 152 162 172 182 20 22 24 26 28 30 32 55 60 65 70 190 200 210 最大 24.3 26.3 28.3 30.3 32.3 34.3 36.3 114.3 124.3 134.3 144.3 14.4 16.4 18.4 20.4 36.4 38.4 40.4 42.4 44.4 47.4 52.4 152.4 162.4 172.4 182.4 20.5 22.5 24.5 26.5 28.5 30.5 32.5 55.5 60.5 65.5 70.5 190.5 200.5 210.5
大径 D4 最大 3s级最小 2 3级最大 3级最小 23 25 27 29 31 33 35 113 123 133 143 13 15 17 19 35 37 39 41 43 46 51 151 161 171 181 19 21 23 25 27 29 31 54 59 64 69 189 199 209 22.200 24.200 26.000 28.200 30.200 32.200 34.200 112.115 122.115 132.115 142.115 12.080 14.080 16.080 18.080 34.040 36.040 38.040 40.040 42.040 45.040 50.040 149.968 159.968 169.968 179.968 17.958 19.958 21.958 23.958 25.958 27.958 29.958 52.910 57.910 62.910 67.910 187.872 197.872 207.872 26.94 28.94 30.94 32.00 34.00 36.00 38.00 116.00 126.00 136.00 146.00 17.00 19.00 21.00 23.00 39.00 41.00 43.00 45.00 47.00 50.00 55.00 155.00 165.00 175.00 185.00 24.00 26.00 28.00 30.00 32.00 34.00 36.00 59.00 64.00 69.00 75.00 194.00 204.00 214.00 26.200 28.200 30.200 32.200 34.200 36.200 38.200 116.115 126.115 136.115 146.115 17.080 19.080 21.080 23.080 39.040 41.040 43.040 45.040 47.040 50.040 55.040 154.968 164.968 174.968 184.968 23.958 25.958 27.958 29.958 31.958 33.958 35.958 58.910 63.910 68.910 73.910 193.872 203.872 213.872 31 33 35 37 39 41 43 121 131 141 151 23 25 27 29 45 47 49 51 53 56 61 161 171 181 191 31 33 35 37 39 41 43 66 71 76 81 201 211 221