Threads and Threading - Sportpilot.info

More documents

Recommendations

Info

1814 ISO MINIATURE SCREW THREADS ISO Miniature Screw Threads ISO Miniature Screw Threads, Basic Form ISO/R 1501:1970 Pitch P H = 0.866025P 0.554256H = 0.48P 0.375H = 0.324760P 0.320744H = 0.320744P D and d dimensions refer to the nut (internal) and screw (external) threads, respectively. British Standard ISO Metric Screw Threads 0.125H = 0.108253P 0.08 0.069282 0.038400 0.025981 0.022222 0.008660 0.09 0.077942 0.043200 0.029228 0.024999 0.009743 0.1 0.086603 0.048000 0.032476 0.027777 0.010825 0.125 0.108253 0.060000 0.040595 0.034722 0.013532 0.15 0.129904 0.072000 0.048714 0.041666 0.016238 0.175 0.151554 0.084000 0.056833 0.048610 0.018944 0.2 0.173205 0.096000 0.064952 0.055554 0.021651 0.225 0.194856 0.108000 0.073071 0.062499 0.024357 0.25 0.216506 0.120000 0.081190 0.069443 0.027063 0.3 0.259808 0.144000 0.097428 0.083332 0.032476 Nominal Diameter Machinery's Handbook 27th Edition ISO Miniature Screw Threads, Basic Dimensions ISO/R 1501:1970 Pitch P Major Diameter D, d Pitch Diameter D 2 , d 2 Minor Diameter D 1 , d 1 0.30 0.080 0.300000 0.248039 0.223200 0.35 0.090 0.350000 0.291543 0.263600 0.40 0.100 0.400000 0.335048 0.304000 0.45 0.100 0.450000 0.385048 0.354000 0.50 0.125 0.500000 0.418810 0.380000 0.55 0.125 0.550000 0.468810 0.430000 0.60 0.150 0.600000 0.502572 0.456000 0.70 0.175 0.700000 0.586334 0.532000 0.80 0.200 0.800000 0.670096 0.608000 0.90 0.225 0.900000 0.753858 0.684000 1.00 0.250 1.000000 0.837620 0.760000 1.10 0.250 1.100000 0.937620 0.860000 1.20 0.250 1.200000 1.037620 0.960000 1.40 0.300 1.400000 1.205144 1.112000 BS 3643:Part 1:1981 (1998) provides principles and basic data for ISO metric screw threads. It covers single-start, parallel screw threads of from 1 to 300 millimeters in diameter. Part 2 of the Standard gives the specifications for selected limits of size. Basic Profile.—The ISO basic profile for triangular screw threads is shown in Fig. 1. and basic dimensions of this profile are given in Table 1. Table 1. British Standard ISO Metric Screw Threads Basic Profile Dimensions BS 3643:1981 (1998) Pitch H = 5 ⁄8H = 3 ⁄8H = H/4 = H/8 = P 0.086603P 0.54127P 0.32476P 0.21651P 0.10825P 0.2 0.173 205 0.108 253 0.064 952 0.043 301 0.021 651 0.25 0.216 506 0.135 316 0.081 190 0.054 127 0.027 063 0.3 0.259 808 0.162 380 0.097 428 0.064 952 0.032 476 0.35 0.303 109 0.189 443 0.113 666 0.075 777 0.037 889 0.4 0.346 410 0.216 506 0.129 904 0.086 603 0.043 301 0.45 0.389 711 0.243 570 0.146 142 0.097 428 0.048 714 0.5 0.433 013 0.270 633 0.162 380 0.108 253 0.054 127 0.6 0.519 615 0.324 760 0.194 856 0.129 904 0.064 952 Copyright 2004, Industrial Press, Inc., New York, NY
Pitch P BRITISH STANDARD ISO METRIC SCREW THREADS 1815 Table 1. (Continued) British Standard ISO Metric Screw Threads Basic Profile Dimensions BS 3643:1981 (1998) 0.7 0.606 218 0.378 886 0.227 322 0.151 554 0.075 777 0.75 0.649 519 0.405 949 0.243 570 0.162 380 0.081 190 0.8 0.692 820 0.433 013 0.259 808 0.173 205 0.086 603 1 0.866 025 0.541 266 0.324 760 0.216 506 0.108 253 1.25 1.082 532 0.676 582 0.405 949 0.270 633 0.135 316 1.5 1.299 038 0.811 899 0.487 139 0.324 760 0.162 380 1.75 1.515 544 0.947 215 0.568 329 0.378 886 0.189 443 2 1.732 051 1.082 532 0.649 519 0.433 013 0.216 506 2.5 2.165 063 1.353 165 0.811 899 0.541 266 0.270 633 3 2.598 076 1.623 798 0.974 279 0.649 519 0.324 760 3.5 3.031 089 1.894 431 1.136 658 0.757 772 0.378 886 4 3.464 102 2.165 063 1.299 038 0.866 025 0.433 013 4.5 3.897 114 2.435 696 1.461 418 0.974 279 0.487 139 5 4.330 127 2.706 329 1.623 798 1.082 532 0.541 266 5.5 4.763 140 2.976 962 1.786 177 1.190 785 0.595 392 6 5.196 152 3.247 595 1.948 557 1.299 038 0.649 519 8 a 6.928 203 4.330 127 2.598 076 1.732 051 0.866 025 a This pitch is not used in any of the ISO metric standard series. All dimensions are given in millimeters. Tolerance System.—The tolerance system defines tolerance classes in terms of a combination of a tolerance grade (figure) and a tolerance position (letter). The tolerance position is defined by the distance between the basic size and the nearest end of the tolerance zone, this distance being known as the fundamental deviation, EI, in the case of internal threads, and es in the case of external threads. These tolerance positions with respect to the basic size (zero line) are shown in Fig. 2 and fundamental deviations for nut and bolt threads are given in Table 2. Table 2. Fundamental Deviations for Nut Threads and Bolt Threads Nut Thread D 2, D 1 H = 5 ⁄8H = 3 ⁄8H = H/4 = H/8 = 0.086603P 0.54127P 0.32476P 0.21651P 0.10825P Bolt Thread d, d 2 Tolerance Position Tolerance Position G H e f g h G H e f g h Fundamental Deviation Fundamental Deviation Pitch P EI EI es es es es Pitch P EI EI es es es es mm µm µm µm µm µm µm mm µm µm µm µm µm µm 0.2 +17 0 … … −17 0 1.25 +28 0 −63 −42 −28 0 0.25 +18 0 … … −18 0 1.5 +32 0 −67 −45 −32 0 0.3 +18 0 … … −18 0 1.75 +34 0 −71 −48 −34 0 0.35 +19 0 … −34 −19 0 2 +38 0 −71 −52 −38 0 0.4 +19 0 … −34 −19 0 2.5 +42 0 −80 −58 −42 0 0.45 +20 0 … −35 −20 0 3 +48 0 −85 −63 −48 0 0.5 +20 0 −50 −36 −20 0 3.5 +53 0 −90 −70 −53 0 0.6 +21 0 −53 −36 −21 0 4 +60 0 −95 −75 −60 0 0.7 +22 0 −56 −38 −22 0 4.5 +63 0 −100 −80 −63 0 0.75 +22 0 −56 −38 −22 0 5 +71 0 −106 −85 −71 0 0.8 +24 0 −60 −38 −24 0 5.5 +75 0 −112 −90 −75 0 1 +26 0 −60 −40 −26 0 6 +80 0 −118 −95 −80 0 See Figs. 1 and 2 for meaning of symbols. Machinery's Handbook 27th Edition Nut Thread D 2, D 1 Copyright 2004, Industrial Press, Inc., New York, NY Bolt Thread d, d 2
Page 1 and 2:
SCREW THREAD SYSTEMS 1725 Screw Thr
Page 3 and 4:
Machinery's Handbook 27th Edition O
Page 5 and 6:
Machinery's Handbook 27th Edition T
Page 7 and 8:
SCREW THREADS 1727 ISO Metric Threa
Page 9 and 10:
Machinery's Handbook 27th Edition S
Page 11 and 12:
Machinery's Handbook 27th Edition S
Page 13 and 14:
UNIFIED SCREW THREADS 1733 UN Inter
Page 15 and 16:
Machinery's Handbook 27th Edition U
Page 17 and 18:
Nominal Size, Threads per Inch, and
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44: Machinery's Handbook 27th Edition U
Page 45 and 46: UNIFIED SCREW THREADS 1765 Table 4c
Page 49 and 50: UNIFIED SCREW THREADS 1769 Table 5d
Page 51 and 52: UNIFIED SCREW THREADS 1771 Table 5e
Page 57 and 58: Machinery's Handbook 27th Edition M
Page 59 and 60: MINIATURE SCREW THREADS 1779 Table
Page 61 and 62: ;; ;;;; ;;;;;; ;;;;;;;; ;;;;;;;;;;
Page 67 and 68: METRIC SCREW THREADS M PROFILE 1787
Page 75 and 76: Pitch P METRIC SCREW THREADS M PROF
Page 81 and 82: Basic Thread METRIC SCREW THREADS M
Page 85 and 86: METRIC SCREW THREADS MJ PROFILE 180
Page 87 and 88: TRAPEZOIDAL METRIC THREADS 1807 Tol
Page 89 and 90: TRAPEZOIDAL METRIC THREADS 1809 Tab
Page 91 and 92: 120 140 160 180 110 130 150 170 Mac
Page 93: Machinery's Handbook 27th Edition T
Page 97 and 98: BRITISH STANDARD ISO METRIC SCREW T
Page 99 and 100: BRITISH STANDARD ISO METRIC SCREW T
Page 101 and 102: Nominal Diametera BRITISH STANDARD
Page 103 and 104: Nominal Diameter BRITISH STANDARD I
Page 105 and 106: Machinery's Handbook 27th Edition A
Page 107 and 108: Machinery's Handbook 27th Edition A
Page 109 and 110: Table 2b. Limiting Dimensions of AN
Page 111 and 112: Machinery's Handbook 27th Edition T
Page 113 and 114: CENTRALIZING ACME SCREW THREADS 183
Page 117 and 118: Machinery's Handbook 27th Edition C
Page 119 and 120: Table 8c. Limiting Dimensions of Am
Page 123 and 124: Machinery's Handbook 27th Edition S
Page 125 and 126: Table 14b. Limiting Dimensions for
Page 127 and 128: Nominal Sizes Table 15. Stub Acme S
Page 129 and 130: Machinery's Handbook 27th Edition B
Page 131 and 132: Thds. a per Inch ANSI BUTTRESS THRE
Page 133 and 134: ANSI BUTTRESS THREADS 1853 Table 3.
Page 135 and 136: ANSI BUTTRESS THREADS 1855 The majo
Page 137 and 138: Machinery's Handbook 27th Edition W
Page 139 and 140: WHITWORTH THREADS 1859 Table 3. Bri
Page 141 and 142: AMERICAN PIPE THREADS 1861 Table 1a
Page 143 and 144: AMERICAN PIPE THREADS 1863 guide fo
Page 145 and 146:
Machinery's Handbook 27th Edition A
Page 147 and 148:
DRYSEAL PIPE THREADS 1867 b PTF-SAE
Page 149 and 150:
Machinery's Handbook 27th Edition B
Page 151 and 152:
BRITISH PIPE THREADS 1871 British S
Page 153 and 154:
Page 155 and 156:
HOSE COUPLING SCREW THREADS 1875 Th
show all

Threads and Threading - Sportpilot.info

Create successful ePaper yourself

Delete template?

Save as template?