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ZELX NI PO STI

Spiral Pointed Taps for Nickel Base Alloys for Helical Coil Wire Screw Thread Inserts

Specification

■ ZELX NI PO STI is the spiral point tap for nickel base alloys which, with nickel as main composition, have much higher corrosion resistance and much higher heat Nitride Oxide resistance than steels, and produces threads oversize Recommended Tapping Speed depending on Materials enough to accommodate helical coil wire thread inserts. ickel base alloys

5〜10

(m/min) For icon explanation, refer to P.50

TYPE：1 TYPE：2

TYPETYPE：：e3 TYPE：4

Segment：1E

SizeClassCodeChamferLℓℓnDsKℓkNo. of Type
(inch)(inch)(inch)(inch)(inch)(inch)flutes

For Helical Coil Wire Screw Thread Inserts, for Unified Threads

STI No.2-56UNC GH2 Y87200 4.5P 1.875 0.335 0.562 0.141 0.11 0.187 2 1

GH1 Y87203

STI No.4-40UNC 4.5P 2 0.413 0.687 0.141 0.11 0.187 3 1

GH2 Y87204 GH2 Y87208

STI No.6-32UNC 4.5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1

GH3 Y87224

STI No.6-40UNF GH2 Y87209 4.5P 2.125 0.453 0.75 0.168 0.131 0.25 3 1

GH2 Y87210

STI No.8-32UNC 4.5P 2.375 0.571 0.937 0.22 0.165 0.281 3 1

GH3 Y87226 GH2 Y87212

STI No.10-24UNC 4.5P 2.5 0.591 1 0.255 0.191 0.312 3 2

GH3 Y87228 GH2 Y87213

STI No.10-32UNF 4.5P 2.5 0.591 1 0.255 0.191 0.312 3 2

GH3 Y87229 GH2 Y87248

STI 1/4-20UNC 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3

GH3 Y87258 GH2 Y87249

STI 1/4-28UNF 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3

GH3 Y87259

STI 5/16-18UNC GH3 Y87260 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3

GH2 Y87251

STI 5/16-24UNF 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3