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Comparative
Gauge / Decimal Wire Diameters |
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Gauge sizes are indicated as whole
numbers, the tables below give the decimal equivalents of the different gauge
numbers. Much confusion has resulted from the use of gauge numbers, in ordering wire
cloth or wire mesh it is preferable to state the exact dimensions in decimal fractions of
an inch or a millimeter. The decimal method of indicating wire diameters has the
advantage of being self-explanatory, whereas arbitrary gauge numbers are not. |
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Most common wire cloth
specifications such as Bolting Cloth,
Filter Cloth,
Fine Mesh, Market Grade and
Mill
Grade utilize decimal wire diameters. |
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Industrial Hardware Cloth and Space
Cloth specifications are typically identified by a gauge number rather than the actual
decimal value of the wire diameter. |
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| Gauge
Number |
Washburn & Moen |
British
Imperial Standard (S.W.G.) |
Birmingham
or Stubs |
American
or Brown & Sharp |
| 7/0 |
.4900" |
.500" |
--- |
--- |
| 6/0 |
.4615" |
.464" |
--- |
.5800" |
| 5/0 |
.4305" |
.432" |
.500" |
.5165" |
| 4/0 |
.3938" |
.400" |
.454" |
.4600" |
| 3/0 |
.3625" |
.372" |
.425" |
.4096" |
| 2/0 |
.3310" |
.348" |
.380" |
.3648" |
| 1/0 |
.3065" |
.324" |
.340" |
.3249" |
| 1 |
.2830" |
.300" |
.300" |
.2893" |
| 2 |
.2625" |
.276" |
.284" |
.2576" |
| 3 |
.2437" |
.252" |
.259" |
.2294" |
| 4 |
.2253" |
.232" |
.238" |
.2043" |
| 5 |
.2070" |
.212" |
.220" |
.1819" |
| 6 |
.1920" |
.192" |
.203" |
.1620" |
| 7 |
.1770" |
.176" |
.180" |
.1442" |
| 8 |
.1620" |
.160" |
.165" |
.1284" |
| 9 |
.1483" |
.144" |
.148" |
.1144" |
| 10 |
.1350" |
.128" |
.134" |
.1018" |
| 11 |
.1205" |
.116" |
.120" |
.0907" |
| 12 |
.1055" |
.104" |
.109" |
.0808" |
| 13 |
.0915" |
.092" |
.095" |
.0719" |
| 14 |
.0800" |
.080" |
.083" |
.0640" |
| 15 |
.0720" |
.072" |
.072" |
.0570" |
| 16 |
.0625" |
.064" |
.065" |
.0508" |
| 17 |
.0540" |
.056" |
.058" |
.0452" |
| 18 |
.0475" |
.048" |
.049" |
.0403" |
| 19 |
.0410" |
.040" |
.042" |
.0358" |
| 20 |
.0348" |
.036" |
.035" |
.0319" |
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| Gauge Number |
Washburn & Moen |
British Imperial
Standard (S.W.G.) |
Birmingham or
Stubs |
American or
Brown & Sharp |
| 21 |
.0317" |
.032" |
.032" |
.0284" |
| 22 |
.0286" |
.028" |
.028" |
.0253" |
| 23 |
.0258" |
.024" |
.025" |
.0225" |
| 24 |
.0230" |
.022" |
.022" |
.0201" |
| 25 |
.0204" |
.020" |
.020" |
.0179" |
| 26 |
.0181" |
.018" |
.018" |
.0159" |
| 27 |
.0173" |
.0164" |
.016" |
.0141" |
| 28 |
.0162" |
.0148" |
.014" |
.0126" |
| 29 |
.0150" |
.0136" |
.013" |
.0112" |
| 30 |
.0140" |
.0124" |
.012" |
.0100" |
| 31 |
.0132" |
.0116" |
.010" |
.0089" |
| 32 |
.0128" |
.0108" |
.009" |
.0079" |
| 33 |
.0118" |
.0100" |
.008" |
.0070" |
| 34 |
.0104" |
.0092" |
.007" |
.0063" |
| 35 |
.0095" |
.0084" |
.005" |
.0056" |
| 36 |
.0090" |
.0076" |
.004" |
.0050" |
| 37 |
.0085" |
.0068" |
--- |
.0044" |
| 38 |
.0080" |
.0060" |
--- |
.0039" |
| 39 |
.0075" |
.0052" |
--- |
.0035" |
| 40 |
.0070" |
.0048" |
--- |
.0031" |
| 41 |
.0066" |
.0044" |
--- |
.00280" |
| 42 |
.0062" |
.0040" |
--- |
.00249" |
| 43 |
.0060" |
.0036" |
--- |
.00222" |
| 44 |
.0058" |
.0032" |
--- |
.00198" |
| 45 |
.0055" |
.0028" |
-- |
.00176" |
| 46 |
.0052" |
.0024" |
--- |
.00157" |
| 47 |
.0050" |
.0020" |
--- |
.00140" |
| 48 |
.0048" |
.0016" |
--- |
.00124" |
| 49 |
.0046" |
.0012" |
-- |
.00111" |
| 50 |
.0044" |
.0010" |
-- |
.00099" |
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Most of the specification tables provided in this
handbook include both imperial and metric decimal diameter values. |
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Reference
Index Main Index Product Specifications Weaves Source |
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