United Kingdom-English (EN)-Metric
E398UNF1/4
E398UNF1/4
E398UNF1/4
E398UNF1/4
Main properties
Material ID: 8464230
ISO Code: E398UNF1/4
AvailabilityIn stock
Availability in Distribution Centres
Europe Distribution Center(default): 3
Americas Distribution Center: 0
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Description

Thread size UNF 0.25 inch - 28 TPI, with thread tolerance class 93707, and maximum threading depth 0.625 inches.

Product Feature

Titanium Carbonitride Coating
Thread Form, Unified Fine
Internal Inch Thread Medium Class of Fit (with increased pitch diameter)
Blind Hole Application
2.5×D Usable Tool Depth to Diameter Ratio
High Speed Cobalt Powder Metal Tool Material
Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)

Product Detail

DescriptionValue
Product nameE398UNF1/4
Ordering code ANSIE398UNF1/4
EAN number3603607095713
Clamping Length - millimeter (LSC)8 mm
Clamping width - millimeter (WSC)5.5 mm
Connection diameter - millimeter (DCON MS)7 mm
Flute count (NOF)3
Overall length - millimeter (OAL)80 mm
Premachined hole diameter - millimeter (PHD)5.5 mm
Thread diameter - millimeter (TD)6.35 mm
Thread diameter size (TDZ)1/4
Threading length - millimeter (THL)10 mm
Threads per inch (TPI)28
Usable Length - millimeter (LU)30 mm
ISOE398UNF1/4
ANSIE398UNF1/4
Brand NameDormer Pramet
Net weight - grams20
Gross weight - grams20
Product number (SAP)86046818
EDP number8464230

Cutting Conditions