Каталог Iscar высокоточные развертки и метчики 2022 - страница 61

TAPS USER GUIDE UNIFIED Fine Thread Nominal Dimensions According to ANSI B1.1 Tap flank diameter production tolerances for ISO 2B Coarse Pitch Threads Dimensions in mm Nut threads limit dimensions - nut threads ANSI B1.1, 2B-3B Nut thread 1/8·H H = 0.86603P 1/2·H H1H H1 = 58 H = 0.54127P60°h3h3 = 17 24 H = 0.61343P 1/2·H 1/4·H r 60°Screw1/6·H d2 = D2 = d- 34 H = d-0.64952Pd3 = d-2h3 = d-1.22687P D D2 D1 P d3 d2 d r = H6 = 0.14434P Nominal T.P.I Dia. Pitch P ExternalDia. d=D FlankDia.d2=D2Minor diameter Pitch diameterTap tolerance 2BNut D1Screwh3Min.Max.Pitch diameterNut tolerancemax.2B/3Bmax. 2Bmax. 3B UNF#0 80 0.318 1.524 1.318 1.181 1.135 1.331 1.344 1.318 1.377 1.361 UNF#1 72 0.353 1.854 1.626 1.473 1.422 1.638 1.651 1.626 1.689 1.674 UNF#2 64 0.397 2.184 1.928 1.755 1.697 1.941 1.953 1.928 1.996 1.979 UNF#3 56 0.454 2.515 2.220 2.024 1.958 2.233 2.245 2.220 2.291 2.273 UNF#4 48 0.529 2.845 2.502 2.271 2.195 2.515 2.527 2.502 2.581 2.560 UNF#5 44 0.577 3.175 2.799 2.550 2.466 2.812 2.824 2.799 2.880 2.860 UNF#6 40 0.635 3.505 3.094 2.817 2.725 3.108 3.119 3.094 3.180 3.157 UNF#8 36 0.706 4.166 3.708 3.401 3.299 3.721 3.734 3.708 3.800 3.777 UNF#10 32 0.794 4.826 4.310 3.967 3.853 4.336 4.348 4.310 4.409 4.384 UNF#12 28 0.907 5.486 4.897 4.503 4.374 4.923 4.935 4.897 5.004 4.976 UNF 1/4" 28 0.907 6.350 5.761 5.367 5.237 5.799 5.812 5.761 5.870 5.842 UNF 5/16" 24 1.058 7.938 7.249 6.792 6.640 7.287 7.300 7.249 7.371 7.341 UNF 3/8" 24 1.058 9.525 8.837 8.379 8.227 8.875 8.887 8.837 8.961 8.931 UNF 7/16" 20 1.270 11.112 10.287 9.738 9.555 10.338 10.351 10.287 10.424 10.391 UNF 1/2" 20 1.270 12.700 11.874 11.326 11.143 11.925 11.938 11.874 12.017 11.981 UNF 9/16" 18 1.411 14.288 13.371 12.761 12.555 13.421 13.434 13.371 13.520 13.482 UNF 5/8" 18 1.411 15.875 14.958 14.348 14.143 15.009 15.022 14.958 15.110 15.072 UNF 3/4" 16 1.588 19.050 18.019 17.330 17.102 18.070 18.082 18.019 18.184 18.143 UNF 7/8" 14 1.814 22.225 21.046 20.262 20.000 21.110 21.123 21.046 21.224 21.181 UNF 1" 12 2.117 25.400 24.026 23.109 22.804 24.089 24.102 24.026 24.219 24.171 UNF 1*1/8" 12 2.117 28.575 27.201 26.284 25.979 27.252 27.277 27.201 27.339 27.351 UNF 1*1/4" 12 2.117 31.750 30.376 29.459 29.154 30.427 30.452 30.376 30.579 30.528 UNF 1*3/8" 12 2.117 34.925 33.551 32.634 32.329 33.602 33.627 33.551 33.759 33.706 UNF 1*1/2" 12 2.117 38.100 36.726 35.809 35.504 36.777 36.802 36.726 36.937 36.886 371