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ISO Hole Tolerances Guide

The document provides ISO tolerances for hole sizes ranging from 3mm to 400mm. It lists the tolerances for nominal hole sizes in micrometers according to different tolerance grades (E, F, G, H, J, K, M, N, P, R). Tighter tolerances are specified for higher tolerance grades.

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2K views6 pages

ISO Hole Tolerances Guide

The document provides ISO tolerances for hole sizes ranging from 3mm to 400mm. It lists the tolerances for nominal hole sizes in micrometers according to different tolerance grades (E, F, G, H, J, K, M, N, P, R). Tighter tolerances are specified for higher tolerance grades.

Uploaded by

kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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ISO Hole Limits Tolerances

ISO Tolerances for Holes(ISO 286-2)- 3mm to 400 mm

Nominal hole sizes (mm)


over 3 6 10 18 30 40 50 65 80 100 120 140 160 180 200 225 250 280 315 355
inc. 6 10 18 30 40 50 65 80 100 120 140 160 180 200 225 250 280 315 355 400
micrometres (10 -6m)
+28 +34 +43 +53 +66 +79 +94 +110 +129 +142 +161
E6
+20 +25 +32 +40 +50 + 60 +72 +85 +100 +110 +125
+32 +40 +50 +61 +75 +90 +107 +125 +146 +162 +185
E7
+20 +25 +32 +40 +50 + 60 +72 +85 +100 +110 +125
+95 +115 +142 +170 +210 +250 +292 +335 +390 +430 +485
E11
+20 +25 +32 +40 +50 + 60 +72 +85 +100 +110 +125
+140 +175 +212 +250 +300 +360 +422 +485 +560 +630 +695
E12
+20 +25 +32 +40 +50 + 60 +72 +85 +100 +110 +125
+200 +245 +302 +370 +440 +520 +612 +715 +820 +920 +1 015
E13
+20 +25 +32 +40 +50 + 60 +72 +85 +100 +110 +125
+18 +22 +27 +33 +41 +49 +58 +68 +79 +88 +98
F6
+10 +13 +16 +20 +25 + 30 +36 43 +50 +56 +62
+22 +28 +34 +41 +50 +60 +71 +83 +96 +108 +119
F7
+10 +13 +16 +20 +25 + 30 +36 43 +50 +56 +62
+28 +35 +43 +53 +64 +76 +90 +106 +122 +137 +151
F8
+10 +13 +16 +20 +25 + 30 +36 43 +50 +56 +62
+12 +14 +17 +20 +25 +29 +34 +39 +44 +49 +54
G6
+4 +5 +6 +7 +9 +10 + 12 +14 +15 +17 +18
+16 +20 +24 +28 +34 +40 +47 +54 +61 +69 +75
G7
+4 +5 +6 +7 +9 +10 + 12 +14 +15 +17 +18
+22 +27 +33 +40 +48 +56 +66 +77 +87 +98 +107
G8
+4 +5 +6 +7 +9 +10 + 12 +14 +15 +17 +18
+8 +9 +11 +13 +16 +19 +22 +25 +29 +32 +36
H6
0 0 0 0 0 0 0 0 0 0 0
+12 +15 +18 +21 +25 +30 +35 +40 +46 +52 +57
H7
0 0 0 0 0 0 0 0 0 0 0
+18 +22 +27 +33 +39 +46 +54 +63 +72 +81 +89
H8
0 0 0 0 0 0 0 0 0 0 0
+30 +36 +43 +52 +62 +74 +87 +100 +115 +130 +140
H9
0 0 0 0 0 0 0 0 0 0 0
+48 +58 +70 +84 +100 +120 +140 +160 +185 +210 +230
H10
0 0 0 0 0 0 0 0 0 0 0
+75 +90 +110 +130 +160 +190 +220 +250 +290 +320 +360
H11
0 0 0 0 0 0 0 0 0 0 0
+5 +5 +6 +8 +10 +13 +16 +18 +22 +25 +29
J6
-3 -4 -5 -5 -6 -6 -6 -7 -7 -7 -7

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ISO Hole Limits Tolerances

+6 +8 +10 +12 +14 +18 +22 +26 +30 +36 +39


J7
-6 -7 -8 -9 -11 -12 -13 -14 -16 -16 -18
+10 +12 +15 +20 +24 +28 +34 +41 +47 +55 +60
J8
-8 -10 -12 -13 -15 -18 -20 -22 -25 -26 -29
+4 +4.5 +5.5 +6.5 +8 +9.5 +11 +12.5 +14.5 +16 +18
JS6
-4 -4.5 -5.5 -6.5 -8 -9.5 -11 -12.5 -14.5 -16 -18
+6 +7.5 +9 +10.5 +12.5 +15 +17.5 +20 +23 +26 +28.5
JS7
-6 -7.5 -9 -10.5 -12.5 -15 -17.5 -20 -23 -26 -28.5
+9 +11 +13.5 +16.5 +19.5 +23 +27 +31.5 +36 +40.5 +44.5
JS8
-9 -11 -13.5 -16.5 -19.5 -23 -27 -31.5 -36 -40.5 -44.5
+2 +2 +2 +2 +3 +4 +4 +4 +5 +5 +7
K6
-6 -7 -9 -11 -13 -15 -18 -21 -24 -27 -29
+3 +5 +6 +6 +7 +9 +10 +12 +13 +16 +17
K7
-9 -10 -12 -15 -18 -21 -25 -28 -33 -36 -40
+5 +6 +8 +10 +12 +14 +16 +20 +22 +25 +28
K8
-13 -16 -19 -23 -27 -32 -38 -43 -50 -56 -61
-1 -3 -4 -4 -4 -5 -6 -8 -8 -9 -10
M6
-9 -12 -15 -17 -20 -24 -28 -33 -37 -41 -46
0 0 0 0 0 0 0 0 0 0 0
M7
-12 -15 -18 -21 -25 -30 -35 -40 -46 -52 -57
+2 +1 +2 +4 +5 +5 +6 +8 +9 +9 +11
M8
-16 -21 -25 -29 -34 -41 -48 -55 -63 -72 -78
-5 -7 -9 -11 -12 -14 -16 -20 -22 -25 -26
N6
-13 -16 -20 -24 -28 -33 -38 -45 -51 -57 -62
-4 -4 -5 -7 -8 -9 -10 -12 -14 -14 -16
N7
-16 -19 -23 -28 -33 -39 -45 -52 -60 -66 -73
-2 -3 -3 -3 -3 -4 -4 -4 -5 -5 -5
N8
-20 -25 -30 -36 -42 -50 -58 -67 -77 -86 -94
-9 -12 -15 -18 -21 -26 -30 -36 -41 -47 -51
P6
-17 -21 -26 -31 -37 -45 -52 -61 -70 -79 -87
-8 -9 -11 -14 -17 -21 -24 -28 -33 -36 -41
P7
-20 -24 -29 -35 -42 -51 -59 -68 -79 -88 -98
-12 -15 -18 -22 -26 -32 -37 -43 -50 -56 -62
P8
-30 -37 -45 -55 -65 -78 -91 -106 -122 -137 -151
- - -
-71 -75 -85 -89 -97
-12 -16 -20 -24 -29 35 37 -44 -47 -56 -58 -61 -68 103
R6 - - - - -
-20 -25 -31 -37 -45 - - -66 -69 -81 -83 -86 -97 -
100 104 117 121 133
54 56 139
- -
-60 -63 -67 -74 -78 -87 -93
-11 -13 -16 -20 -25 30 32 -38 -41 -48 -50 -53
R7 - - - - - - -
-23 -28 -34 -41 -50 - - -73 -76 -88 -90 -93
106 109 113 126 130 144 150
60 62

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ISO Hole Limits Tolerances

micrometres
over 3 6 10 18 30 40 50 65 80 100 120 140 160 180 200 225 250 280 315 355
inc. 6 10 18 30 40 50 65 80 100 120 140 160 180 200 225 250 280 315 355 400
Nominal hole sizes (mm)

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ISO Hole Limits Tolerances

ISO Tolerances for Holes(ISO 286-2)- 400mm to 3150 mm

Limits in μm (10-6 m)

Nominal Hole sizes


Over 400 500 630 800 1000 1250 1600 2000 2500
Inclusive 500 630 800 1000 1250 1600 2000 2500 3150
+175 +189 +210 + 226 +261 +298 +332 +360 +420
E6
+135 + 145 +160 +170' +195 +220 +240 +260 +290
+
+198 +215 +260 +300 +345 +390 +435 +500
E7 240
+135 +145 +170' +195 +220 +240 +260 +290
+160
+ 232 +255 +285 +310 +360 +415 +470 +540 +620
E8
+135 +145 +160 +170 +195 +220 +240 +260 +290
+530
+290 +320 +360 +400 +455 + 610 +700 +830
E9 +
+135 +145 +160 +170 +195 +240 +260 +290
220
+385 +425 +480 + 530 +615 +720 +840 +960 +1150
E10
+135 +145 +160 + 170 +195 +220 +240 +260 +290
+108 +120 +130 +142 +164 + 188 +212 +240 +280
F6
+68 +76' +80 +86]' +98 +110 +120 +130 +145
+131 +146 + 160 + 176 + 203 + 235 +270 +305 +355
F7
+68 +76' +80 +86]' +98 +110 +120 +130 +145
+165 + 186 +205 + 226 +263 +305 +350 +410 +475
F8
+68 +76' +80 +86]' +98 +110 +120 +130 +145
+60 +66 +74 +82 +94 +108 +124 +144 +173
G6
+20 +22 +24 +26 +28 +30' +32 +34 +38
+83 +92 + 104 +116 +133 + 155 +182 +209 +248
G7
+20 +22 +24 +26 +28 +30' +32 +34 +38
+117 +132 + 149 +166 +193 +225 +262 +314 +368
G8
+20 +22 +24 +26 +28 +30' +32 +34 +38
+40 +44 +50 +56 +66 +78 +92 +110 +135
H6
0 0 0 0 0 0 0 0 0
+63 +70 + 80 + 90 +105 + 125 +150 +175 +210
H7
0 0 0 0 0 0 0 0 0
+97 +110 +125 +140 +165 +195 +230 + 280 +330
H8
0 0 0 0 0 0 0 0 0

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ISO Hole Limits Tolerances

+155 +175 +200 +230 +260 +310 +370 + 440 +540


H9
0 0 0 0 0 0 0 0 0
+250 +280 +320 +360 +420 +500 +600 +700 +860
H10
0 0 0 0 0 0 0 0 0
+400 + 440 +500 +560 +660 +780 +920 +1100 +1350
H11
0 0 0 0 0 0 0 0 0
JS6 +/-20 +/-22 +/-25 +/-28 +/-33 +/-39 +/-46 +/-55 +/-67,5
+/- +/- +/-
JS7 +/-35 +/-40 +/-45 +/-75 +/-87,5 +/-105
31,5 52,5 62,5
+/- +/- +/- +/- +/-
JS8 +/-55 +/-70 +/-140 +/-165
48,5 62,5 82,5 97,5 115
+8 +0 +0 +0 +0 +0 +0 +0 +0
K6
-32 -44 -50 - 56' -66 -78 -92 -110 -135
+18 +0 +0 +0 +0 +0 +0 +0 +0
K7
-45 - 70' -80 - 90' -105 -125 150- 175- -210
+ 29 +0 +0 +0 +0 +0 +0 +0 +0
K8
-68 -110 -125 -140 -165 -195 -230 -280 -330
-10 -26 -30 -34 -40 -48 -58 -68 -76
M6
-50 -70 -80 -90 -106 -126 -150 -178 -211
0 -26 -30 -34 -40 -48 -58 -68 -76
M7
-63 -96 -110 -124 -145 -173 -208 -243 -286
+ 11 -26 -30 -34 -40 -48 -58 -68 -76
M8
-86 -136 -155 -174 -205 -243 -288 -348 -406
-27 -44 -50 -56 -66 -78 -92 -110 -135
N6
-67 -88 -100 - 112 -132 -156 -184 - 220 -270
-17 -44 -50 -56 -66 -78 -92 -110 -135
N7
-80 -114 -130 - 146 -171 -203 -242 - 285 -345
-6 -44 -50 -56 -66 -78 -92 -110 -135
N8
-103 -154 -175 - 196 -231 -273 -322 -390 -465
-55 -78 -88 -100 -120 -140 -170 -195 -240
P6
-95 -122 -138 -156 - 186 -218 -262 -305 -375
-45 -78 -88 -100 -120 -140 -170 -195 -240
P7
-108 -148 -168 - 190 -225 -265 -320 -370 -450
-68 -78 -88 -100 -120 -140 -170 -195 -240
P8
-165 -188 -213 -240 - 285 335- -400 - 475 -57
Over 400 500 630 800 1000 1250 1600 2000 2500

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ISO Hole Limits Tolerances

Inclusive 500 630 800 1000 1250 1600 2000 2500 3150
Nominal Hole sizes

http://www.roymech.co.uk/Useful_Tables/ISO_Tolerances/ISO_286_2H_2.html (3 of 3)4/7/2008 11:30:39 AM

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