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All Products ➞ Threaded Inserts ➞ PowerCoil® ➞ STI Taps ➞ Straight Flute Taps ➞ NPT
3/8" x 18 STI NPT Intermediate HSS Tap
| Part Number: | 3552-3/8I |
| Brand: | PowerCoil |
| Barcode: | 9326518016632 |
| Diameter (inch): | 3/8 |
| Lead: | Intermediate |
| Length (mm): | 65 |
| Pitch (tpi): | 18 |
| TPI: | 18 |
About this item:
- 3/8" x 18 STI NPT Intermediate HSS Tap
- National Pipe Taper
- HSS Intermediate 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.
- Intermediate Taps have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole.