
■ ZELX NI SP STI is the tap for nickel base alloys which, with nickel as main composition, have much higher corrosion resistance and higher Nitride+Oxide heat resistance than steels, and produces Recommended Tapping Speed depending on Materials threads oversize enough to accommodate helical coil wire thread inserts.
| Medium carbon steels | High carbon steels | Stainless steels | Nickel base alloys |
| 5中炭素鋼15 | 5高炭素鋼15 | 5ステンレス鋼15 | ニッケル基合金510 |
| (m/min) | (m/min) | ( m/ min) | (m/min) |
TYPE:1 TYPE:2
Segment:1D
| Size | Class | Code | Chamfer | L (inch) | ℓ (inch) | ℓn (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | TYPE |
| For i | Unified | i Threads | l | ||||||||
| No.2-56UNC | GH2 | Y87400 | 3P | 1.875 | 0.236 | 0.562 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.4-40UNC | GH1 | Y87403 | 3P | 2 | 0.276 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.4-40UNC | GH2 | Y87404 | 3P | 2 | 0.276 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.4-40UNC | GH2 | Y87004 | 1.5P | 2 | 0.276 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.4-40UNC | GH3 | Y87420 | 3P | 2 | 0.276 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.4-40UNC | GH3 | Y87419 | 1.5P | 2 | 0.276 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.6-32UNC | GH2 | Y87408 | 3P | 2.375 | 0.354 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-32UNC | GH2 | Y87008 | 1.5P | 2.375 | 0.354 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-32UNC | GH3 | Y87424 | 3P | 2.375 | 0.354 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-32UNC | GH3 | Y87425 | 1.5P | 2.375 | 0.354 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-32UNC | GH5 | Y87042 | 1.5P | 2.375 | 0.354 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-40UNF | GH2 | Y87409 | 3P | 2.125 | 0.276 | 0.75 | 0.168 | 0.131 | 0.25 | 3 | 1 |
| No.8-32UNC | GH1 | Y81409 | 3P | 2.375 | 0.354 | 0.937 | 0.22 | 0.165 | 0.281 | 3 | 1 |
| No.8-32UNC | GH2 | Y87410 | 3P | 2.375 | 0.354 | 0.937 | 0.22 | 0.165 | 0.281 | 3 | 1 |
| No.8-32UNC | GH2 | Y87026 | 1.5P | 2.375 | 0.354 | 0.937 | 0.22 | 0.165 | 0.281 | 3 | 1 |
| No.8-32UNC | GH3 | Y87426 | 3P | 2.375 | 0.354 | 0.937 | 0.22 | 0.165 | 0.281 | 3 | 1 |