15411/4X18 NPT Pipe Tap
Item #:
25KNPT
Product Info
59371
Straight flute tap with a 2-3xP semi-bottoming lead, for National Pipe Taper thread NPT 1/4” with 18 TPI and Normal class of fit, dimensions according to ANSI standard with 0.5630” shank and 0.4210” square drive, HSS with bright finish for 2xD through or blind hole threading in alloy steel
NPT Pipe Tap
Item Specifications
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ANSI
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20
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112
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12
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0.421
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Bright
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14.3
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0.563
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United States of America
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4
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Straight Flute Geometry
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66
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Right
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7/16
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Possible use
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P - Steel and cast steel(steels with alloy content = 10% and a hardness of <
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45HRC)
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HSS
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Possible use
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61.91
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2.7/16
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2.4375
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Primary use
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Through or Blind Hole
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Inch
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NPT Pipe Tap
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Tap
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Cylindrical shank with Square
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1/4
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NPT - National taper pipe
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1.1/16
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18
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2