United Kingdom-English (EN)-Metric
E0251/4
E0251/4
E0251/4
E0251/4
Main properties
Material ID: 5974027
ISO Code: E0251/4
AvailabilityIn stock
Availability in Distribution Centres
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Americas Distribution Center: 1738
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Description

Spiral point tap with chamfer form B with a 3.5-5xP second 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, powder metallurgical HSS-E with bright finish for 2.5xD through hole threading in free machining and plain carbon steel and wrought or cast aluminium and copper or copper alloys


Product Feature

Bright (uncoated)
Thread Form, Unified Coarse
Thread tolerance class 3B
Through Hole Application
2.5×D Usable Tool Depth to Diameter Ratio
High Speed Cobalt Powder Metal Tool Material
Plug Tap Chamfer (3.5 – 5 Pitch Lead)

Product Detail

DescriptionValue
Product nameE0251/4
Ordering code ANSIE0251/4
EAN number7320760581117
Clamping width - millimeter (WSC)4.85 mm
Connection diameter - millimeter (DCON MS)6.48 mm
Flute count (NOF)2
Overall length - fractional inch (OAL)2.1/2
Overall length - millimeter (OAL)63.5 mm
Premachined hole diameter - imperial (PHD)N7
Premachined hole diameter - millimeter (PHD)5.1 mm
Thread diameter size (TDZ)1/4
Threading length - millimeter (THL)12.89 mm
Threads per inch (TPI)20
Tolerance limitH3
Usable Length - millimeter (LU)25.59 mm
ISOE0251/4
ANSIE0251/4
Brand NameDormer Pramet
Net weight - grams15.1
Gross weight - grams15.1
EDP number0581117

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