ANSI ZELX NI PO STI

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

Specification

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

Low carbon steelsMedium carbon steelsStainless steelsNickel base alloysinserts.
5低炭素鋼105中炭素鋼105ステンレス鋼10ニッケル基合金510
(m/min)(m/min)( m/ min)(m/min)

TYPE:1 TYPE:2

TYPE:3 TYPE:4

Segment:1E

SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesTYPE
Fo ir Unifiedi Threads
No.2-56UNCGH2Y872004.5P1.8750.3350.5620.1410.110.18721
No.4-40UNCGH1Y872034.5P20.4130.6870.1410.110.18731
No.4-40UNCGH2Y872044.5P20.4130.6870.1410.110.18731
No.6-32UNCGH2Y872084.5P2.3750.5310.8750.1940.1520.2531
No.6-32UNCGH3Y872244.5P2.3750.5310.8750.1940.1520.2531
No.6-40UNFGH2Y872094.5P2.1250.4530.750.1680.1310.2531
No.8-32UNCGH2Y872104.5P2.3750.5710.9370.220.1650.28131
No.8-32UNCGH3Y872264.5P2.3750.5710.9370.220.1650.28131
No.10-24UNCGH2Y872124.5P2.50.59110.2550.1910.31232
No.10-24UNCGH3Y872284.5P2.50.59110.2550.1910.31232
No.10-32UNFGH2Y872134.5P2.50.59110.2550.1910.31232
No.10-32UNFGH3Y872294.5P2.50.59110.2550.1910.31232
1/4-20UNCGH2Y872484.5P2.7180.6691.1250.3180.2380.37533
1/4-20UNCGH3Y872584.5P2.7180.6691.1250.3180.2380.37533
1/4-28UNFGH2Y872494.5P2.7180.6691.1250.3180.2380.37533
1/4-28UNFGH3Y872594.5P2.7180.6691.1250.3180.2380.37533
5/16-18UNCGH3Y872604.5P2.9370.7481.250.3810.2860.43733