US STANDARD / ISO
MILLIMETERS
QTY
ASTM E 11 
DESIGNATION
STEP 1- SELECT A SIEVE RIM MATERIAL
STEP 2 - SELECT A RIM DIAMETER AND SIEVE STANDARD
STEP 4 - SELECT THE HEIGHT   (FULL HEIGHT STANDARD)
APERTURE SIZES  CONVERSION CHART FOR TYLER SCREEN SIZES
5.00 inch            125 mm
ISO ONLY           112 mm
4.24 inch            106 mm
4.00 inch            100 mm
3.50 inch              90 mm
ISO ONLY             80 mm
3.00 inch              75 mm
ISO ONLY             71 mm
2.50 inch              63 mm
2.12 inch               53 mm
2.0 inch                50 mm
1.75 inch              45 mm
ISO ONLY             40 mm
1.50 inch           37.5 mm
ISO ONLY             56 mm
ISO ONLY          35.5 mm
1.25 inch           31.5 mm
ISO ONLY             28 mm
1.06 inch           26.5 mm
1.00 inch              25 mm
1/8 inch             22.4 mm
ISO ONLY             20 mm
3/4 inch                19 mm
ISO ONLY             18 mm
5/8 inch                16 mm
ISO ONLY             14 mm
.530 inch           13.2 mm
1/2 inch             12.5 mm
7/16 inch           11.2 mm
ISO ONLY             10 mm
3/8 inch               9.5 mm
ISO ONLY               9 mm
5/16 inch                8 mm
ISO ONLY            7.1 mm
.0265 inch           6.7 mm
1/4 inch               6.3 mm
NO. 3.5                5.6 mm
ISO ONLY               5 mm
ISO ONLY            2.5 mm
ISO ONLY            4.5 mm
ISO ONLY          3.55 mm
ISO ONLY          2.24 mm
ISO ONLY          3.15 mm
NO. 4                 4.75 mm
NO. 5                      4 mm
NO. 6                 3.35 mm
NO. 7                   2.8 mm
NO. 8                  2.36 mm
NO. 10                    2 mm
ISO ONLY            1.8 mm
NO. 12                 1.7 mm
ISO ONLY            1.6 mm
NO. 14                 1.4 mm
ISO ONLY          1.25 mm
NO. 16               1.18 mm
ISO ONLY          1.12 mm
NO. 18                    1 mm
ISO ONLY          .900 mm
NO. 20               .850 mm
ISO ONLY          .800 mm
NO. 25               .710 mm
ISO ONLY          .630 mm
NO. 30               .600 mm
ISO ONLY          .560 mm
NO. 35               .500 mm
ISO ONLY          .450 mm
NO. 40               .425 mm
ISO ONLY          .400 mm
NO. 45               .355 mm
ISO ONLY          .315 mm
NO. 50               .300 mm
ISO ONLY          .280 mm
NO. 60               .250 mm
ISO ONLY          .224 mm
NO. 70               .212 mm
ISO ONLY          .200 mm
NO. 80               .180 mm
ISO ONLY          .160 mm
NO. 100             .150 mm
ISO ONLY          .140 mm
NO. 120             .125 mm
ISO ONLY          .112 mm
NO. 140             .106 mm
ISO ONLY          .100 mm
NO. 170             .090 mm
ISO ONLY          .080 mm
NO. 200             .075 mm
ISO ONLY          .071 mm
NO. 230             .063 mm
ISO ONLY          .056 mm
NO. 270             .053 mm
ISO ONLY          .050 mm
NO. 325             .045 mm
ISO ONLY          .040 mm
NO. 400             .038 mm
ISO ONLY          .036 mm
NO. 450             .032 mm
NO. 500             .025 mm
NO. 635             .020 mm
QTY
ASTM E 11 
DESIGNATION
US STANDARD / ISO
MILLIMETERS
5)  SELECT QUANTITY & APERTURE SIZE FROM BELOW CHARTS
ISO 3310 & ASTM E 11 WIRE MESH SIEVES
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QTY
ASTM E 11 
DESIGNATION
US STANDARD / ISO
MILLIMETERS
QTY
ASTM E 11 
DESIGNATION
US STANDARD / ISO
MILLIMETERS
STEP 3 - SELECT A TOLERANCE GRADE

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