Page 172 - Yamawa_European_Catalogue_YEU23

Spiral Fluted Taps

ZELX SS NPT
Intro

MS Material Specific Series
SP
Taps for American Taper Pipe Threads, for stainless steel
ANSI
FEATURES
Material specific for blind hole application.
2.5P
SL HSS-E OX Most suitable for stainless steel, steel and alloy steel.
THCHT OX treatment reduces welding troubles.

Recommended Tapping Speeds Depending On Materials
PO
ISO Vc (m/min) ISO Vc (m/min)
P2 ≤5 + M1 ≤5 +
P3 ≤5 + M2 ≤5 +
ST P4 ≤5 ,
P7 ≤5 +
+ 1st choice , suitable
ROLL

ANSI-ZELX SS NPT
TYPE: US_055 TYPE: US_056
CARBIDE K K
DCON DCON

LK K LK
LONG THL THL K
LF LF

HAND
TAPS
Basic
TCTR Ø Hole Ø Code THCHT major Ø LF THL LS DCON K LK NOF Type Stock
NPT (tolerance) (mm) (mm) (chamfer) (inch) (inch) (inch) (inch) (inch) (inch)
(mm)
ANSI
EG (STI) 1/16-27 ANSI G 6 6.05 Y83640 2.5P 7.770 2.125 0.687 - 0.312 0.234 0.375 4 055 f
ANSI G 8.35 8.39 Y83641 2.5P 10.117 2.125 0.75 - 0.437 0.328 0.375 4 055 f
1/8-27
ANSI G 8.35 8.39 Y83642 2.5P 10.117 2.125 0.75 - 0.312 0.234 0.375 4 056 f
SPECIAL 1/4-18 ANSI G 10.8 10.85 Y83643 2.5P 13.426 2.437 1.062 - 0.562 0.421 0.437 4 055 f
ANSI G 14.25 14.27 Y83644 2.5P 16.866 2.562 1.062 - 0.7 0.531 0.5 4 055 f
THREADS, 3/8-18
GAUGES
ANSI G 17.5 17.6 Y83645 2.5P 20.980 3.125 1.375 - 0.687 0.515 0.625 4 056 f
1/2-14
ANSI G 22.9 22.91 Y83646 2.5P 26.325 3.25 1.375 - 0.906 0.679 0.687 4 056 f
3/4-14
THREAD 1 -11 1/2 ANSI G 28.75 28.78 Y83647 2.5P 32.934 3.75 1.75 - 1.125 0.843 0.812 4 056 f
MILLS

DIES

CENTER
DRILLS

Technical
info

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