坡道起步定点停车图解 2坡道定点停车与起步技巧图解

螺纹规格 螺牙距.doc 管螺纹 外螺纹大径 内螺纹小径 R1/8"-28 9.728 8.566 R1/4"-19 13.157 11.445 R3/8"-19 16.663 14.951 R1/2"-14 20.956 18.632 (R5/8"-14) 22.912 20.588 R3/4"-14 26.442 24.119 R1"-11 33.250 30.292 R1.1/4"-11 41.912 38.954 R1.1/2"-11 47.805 44.847 R1.3/4"-11 53.748 50.791 R2"-11 59.616 56.659 管螺纹 外螺纹大径 内螺纹小径 G1/8"-28 9.728 8.386 G1/4"-19 13.157 11.445 G3/8"-19 15.862 14.95 G1/2"-14 20.955 18.531 (G5/8"-14) 22.911 20.587 G3/4"-14 26.441 24.117 G1"-11 33.249 30.291 G1.1/4"-11 41.91 36.962 G1.1/2"-11 47.803 44.845 G1.3/4"-11 53.746 50.788 G2"-11 59.614 56.556 管螺纹 外径 内径 Z1/8"-27 10.272 8.766 Z1/4"-18 13.572 11.314 Z3/8"-18 17.055 14.797 Z1/2"-14 21.223 18.321 Z3/4"-14 26.568 23.666 Z1"-11.1/2 33.228 29.694 Z1.1/4"-11.1/2 41.985 38.451 Z1.1/2"-11.1/2 48.054 44.520 Z2"-11.1/2 60.092 56.558 UNF 管螺纹 外径 内径 7/16"-20 11.113 9.9 1/2"-20 12.700 11.5 9/16"-18 14.288 12.9 3/4"-16 19.050 17.5 7/8"-14 22.225 20.5 1.1/16"-12 26.988 24.9 1.5/16"-12 33.338 31.3 1.5/8"-12 41.275 39.2 SAE 45? 管螺纹 外径 内径 3/8"-24 9.525 8.6 7/16"-20 11.113 9.9 1/2"-20 12.700 11.5 5/8"-18 15.875 14.2 3/4"-16 18.900 17.5 55?圆柱管螺纹的型式和尺寸 British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF) 大径 螺距 中径 小径 mm mm 每英寸牙数 mm 外螺纹 牙型高度 底孔尺寸 螺纹代号 基本尺寸 d=D p tpi d2=D2 d3 H1 mm G 1/8 1/8: 9.728 0.907 28 9.147 8.566 0.581 8.7 G 1/4 1/4: 13.157 1.337 19 12.301 11.445 0.856 11.6 G 3/8 3/8: 16.662 1.337 19 15.806 14.95 0.856 15 G 1/2 1/2: 20.955 1.814 14 19.793 18.631 1.162 19 G 5/8 5/8: 22.911 1.814 14 21.749 20.587 1.162 20.75 G 3/4 3/4: 26.441 1.814 14 25.279 24.117 1.162 24.5 G 7/8 7/8: 30.201 1.814 14 29.039 27.877 1.162 28 G 1 1: 33.249 2.309 11 31.77 30.291 1.479 30.5 G 1 1/8 1 1/8: 37.897 2.309 11 36.418 34.939 1.479 35 G 1 1/4 1 1/4: 41.91 2.309 11 40.431 38.952 1.479 39.5 G 1 3/8 1 3/8: 44.323 2.309 11 42.844 41.365 1.479 41.5 G 1 1/2 1 1/2: 47.803 2.309 11 46.324 44.845 1.479 45 G 1 3/4 1 3/4: 53.746 2.309 11 52.267 50.788 1.479 51 G 2 2: 59.614 2.309 11 58.135 56.656 1.479 57 G 2 1/4 2 1/4: 65.71 2.309 11 64.231 62.752 1.479 63 G 2 1/2 2 1/2: 75.184 2.309 11 73.705 72.226 1.479 72.5 G 2 3/4 2 3/4: 81.534 2.309 11 80.055 78.576 1.479 79 G 3 3: 87.884 2.309 11 86.405 84.926 1.479 85.5 G 3 1/4 3 1/4: 93.98 2.309 11 92.501 91.022 1.479 91 G 3 1/2 3 1/2: 100.33 2.309 11 98.351 97.372 1.479 97.75 G 3 3/4 3 3/4: 106.68 2.309 11 105.201 103.722 1.479 104 G 4 4: 113.03 2.309 11 111.55 110.072 1.479 110.5 G 4 1/2 4 1/2: 125.73 2.309 11 124.251 122.772 1.479 123 G 5 5: 138.43 2.309 11 136.951 135.472 1.479 136 G 5 1/2 5 1/2: 151.13 2.309 11 149.651 148.172 1.479 148.5 G 6 6: 163.83 2.309 11 162.351 160.872 1.479 161.5