美制29°梯形螺纹（ACME）
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I.C.
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螺距
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订货号
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L
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X
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Y
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TPI
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右刀
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左刀
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外螺纹
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1/4″
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16
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11ER16ACME
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11EL16ACME
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11
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0.9
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1.0
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3/8″
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16
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16ER16ACME
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16EL16ACME
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16
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0.9
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1.0
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14
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16ER14ACME
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16EL14ACME
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1.0
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1.2
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12
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16ER12ACME
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16EL12ACME
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1.1
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1.2
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10
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16ER10ACME
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16EL10ACME
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1.3
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1.3
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8
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16ER8ACME
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16EL8ACME
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1.5
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1.5
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1/2″
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6
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22ER6ACME
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22EL6ACME
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22
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1.8
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2.1
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5
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22ER5ACME
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22EL5ACME
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2.0
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2.3
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5/8″
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4
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27ER4ACME
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27EL4ACME
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27
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2.3
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2.7
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内螺纹
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1/4″
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16
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11NR16ACME
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11NL16ACME
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11
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0.9
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1.0
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3/8″
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16
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16NR16ACME
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16NL16ACME
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16
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0.9
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1.0
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14
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16NR14ACME
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16NL14ACME
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1.0
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1.2
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12
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16NR12ACME
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16NL12ACME
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1.1
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1.2
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10
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16NR10ACME
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16NL10ACME
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1.3
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1.3
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8
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16NR8ACME
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16NL8ACME
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1.5
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1.5
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1/2″
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6
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22NR6ACME
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22NL6ACME
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22
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1.8
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2.1
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5
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22NR5ACME
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22NL5ACME
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2.0
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2.3
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5/8″
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4
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27NR4ACME
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27NL4ACME
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27
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2.3
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2.7
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