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Diametro esterno - Diametro interno - Filetti per pollice - Unified fine - Standard American Engineers
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La seguente tabella riporta la corrispondenza tra filettature UNF (Unified Fine) e SAE (Standard American Engineers) in pollici
e millimetri e le relative specifiche tecniche.
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Filettature comuni
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UNF
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SAE
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Diametro esterno
max.
(mm)
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Diametro interno
min.
(mm)
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N° filetti
per pollice
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Filetti
(mm)
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7/16"-20
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1/4"
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11,079
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9,738
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20
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1,270
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1/2"-20
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5/16"
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12,667
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11,328
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20
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1,270
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5/8"-18
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3/8"
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15,839
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14,348
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18
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1,411
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3/4"-16
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1/2"
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19,012
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17,330
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16
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1,588
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7/8"-14
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-
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22,184
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20,262
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14
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1,814
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7/8"-14
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5/8"
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22,184
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20,262
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14
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1,814
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1"-14
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3/4"
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25,357
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23,437
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14
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1,814
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17/16"-14
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-
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26,947
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25,024
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14
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1,814
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9/8"-12
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-
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28,529
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26,284
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12
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2,117
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5/4"-12
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7/8"
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31,704
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29,459
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12
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2,117
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11/8"-12
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-
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34,877
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32,634
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12
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2,117
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3/2"-12
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1"
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38,052
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35,809
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12
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2,117
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