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All Products ➞ Threaded Inserts ➞ PowerCoil® ➞ STI Taps ➞ Straight Flute Taps ➞ 8-UN
1.3/8" x 8 STI UN Bottoming HSS Tap
| Part Number: | 3570-1.3/8B |
| Brand: | PowerCoil |
| Barcode: | 9326518015741 |
| Diameter (inch): | 1-3/8 |
| Lead: | Bottoming |
| Length (mm): | 170 |
| Pitch (tpi): | 8 |
| TPI: | 8 |
About this item:
- 1.3/8" x 8 STI UN Bottoming HSS Tap
- Unified National 8 Thread Series (UN-8)
- HSS Bottoming Lead 3B Tolerance Screw Thread Insert (STI) Tap.
- PowerCoil wire thread inserts are installed into oversize tapped holes.
- Only PowerCoil STI (Screw Thread Insert) Taps are suitable for use with PowerCoil Wire Thread Inserts.
- STI Taps have a larger diameter, than standard taps, but the same pitch to accommodate the wire thread insert.
- Once the insert is installed in the tapped hole it creates the desired internal thread tolerance for the installed bolt or stud.