15851/4X20H32FLNO2 UNC Relieved Style Tap
Item #:
25CT2P/SP
Product Info
321-1/4-20
Spiral point tap NO2 with a 4-6xP plug lead, for Unified National Coarse thread UNC 1/4” with 20 TPI and 3B class of fit with H3 pitch diameter limits, dimensions according to ANSI standard with 0.2550” shank and 0.1910” square drive, HSS with bright finish for 2.5xD through hole threading in steel and cast steel
UNC Relieved Style Tap
Item Specifications
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ANSI
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9
-
80
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10
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0.191
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Bright
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6.48
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0.255
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United States of America
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1/4in
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Plug
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2
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Spiral Point Geometry
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15
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Right
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5/16
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Possible use
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Possible use
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N - Non-ferrous metals(metals including alloys without an appreciable amount of iron), 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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Primary use
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63.5
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2.1/2
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2.5
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Primary use
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Through Hole
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Inch
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UNC Relieved Style Tap
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Cylindrical shank with Square
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1/4
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UNC - Unified Coarse
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1/4-20
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Coarse
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1"
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20
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H3
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2.5