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/ Technical Information / Tolerances on Bars |
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Tolerances on Bar Size |
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Perforated Opening |
Tolerance on Avg. Bars |
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Standard (metric) MM |
USA Industrial Standard Inch |
Additional Sizes Inch |
Standard (metric) MM |
USA Industrial Standard Inch |
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125.00 |
5 |
... |
±3.2 |
±0.125 |
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... |
... |
4
- 1/2" |
... |
±0.122 |
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106.00 |
4
- 1/4" |
... |
±2.9 |
±0.113 |
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100.00 |
4 |
... |
±2.7 |
±0.107 |
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... |
... |
3
- 3/4" |
... |
±0.102 |
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90.00 |
3
- 1/2" |
... |
±2.5 |
±0.097 |
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... |
... |
3
- 1/4" |
... |
±0.089 |
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75.00 |
3 |
... |
±2.1 |
±0.081 |
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... |
... |
2
- 3/4" |
... |
±0.076 |
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63.00 |
2
- 1/2" |
... |
±1.8 |
±0.069 |
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... |
... |
2
- 1/4" |
... |
±0.063 |
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53.00 |
2
- 1/8" |
... |
±1.5 |
±0.059 |
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50.00 |
2 |
... |
±1.4 |
±0.056 |
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... |
... |
1
- 7/8" |
... |
±0.054 |
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45.00 |
1
- 3/4" |
... |
±1.3 |
±0.051 |
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... |
... |
1
- 5/8" |
... |
±0.047 |
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37.50 |
1
- 1/2" |
... |
±1.1 |
±0.043 |
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... |
... |
1
- 3/8" |
... |
±0.040 |
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31.50 |
1
- 1/4" |
... |
±0.9 |
±0.037 |
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... |
... |
1
- 3/16" |
... |
±0.035 |
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... |
... |
1
- 1/8" |
... |
±0.034 |
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26.50 |
1
- 1/16" |
... |
±0.8 |
±0.032 |
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25.00 |
1 |
... |
±0.8 |
±0.030 |
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... |
... |
15/16" |
... |
±0.029 |
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22.40 |
7/8" |
... |
±0.7 |
±0.028 |
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... |
... |
13/16" |
... |
±0.026 |
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19.00 |
3/4" |
... |
±0.6 |
±0.024 |
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... |
... |
11/16" |
... |
±0.022 |
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16.00 |
5/8" |
... |
±0.5 |
±0.021 |
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... |
... |
9/16" |
... |
±0.019 |
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13.20 |
17/32" |
... |
±0.46 |
±0.018 |
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12.50 |
1/2" |
... |
±0.44 |
±0.017 |
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... |
... |
15/32" |
... |
±0.017 |
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11.20 |
7/16" |
... |
±0.41 |
±0.016 |
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9.50 |
3/8" |
... |
±0.36 |
±0.014 |
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8.00 |
5/16" |
... |
±0.32 |
±0.013 |
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6.70 |
17/64" |
... |
±0.29 |
±0.011 |
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6.30 |
1/4" |
... |
±0.28 |
±0.011 |
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5.60 |
7/32" |
... |
±0.27 |
±0.011 |
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4.75 |
3/16" |
... |
±0.23 |
±0.009 |
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4.00 |
5/32" |
... |
±0.22 |
±0.009 |
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3.35 |
0.127 |
... |
±0.20 |
±0.008 |
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* |
(1/8) |
* |
* |
* |
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2.80 |
7/64" |
... |
±0.18 |
±0.007 |
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2.36 |
3/32" |
... |
±0.16 |
±0.006 |
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2.00 |
0.078 |
... |
±0.150 |
±0.006 |
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1.70 |
0.066 |
... |
±0.135 |
±0.005 |
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1.40 |
0.055 |
... |
±0.125 |
±0.005 |
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1.18 |
0.045 |
... |
±0.110 |
±0.004 |
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1.00 |
0.039 |
... |
±0.090 |
±0.004 |
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0.83 |
0.032 |
... |
±80
p.m |
±0.003 |
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0.71 |
0.027 |
... |
±70
p.m |
±0.003 |
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0.60 |
0.023 |
... |
±65
p.m |
±0.003 |
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0.50 |
0.020 |
... |
±60
p.m |
±0.002 |
* Round holes only |
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