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All Products ➞ Bordo ➞ Taps & Dies ➞ HSS Hand and Machine Taps ➞ HSS Tap NPT
1.1/4" x 11.5 NPT Bottoming HSS Tap
| Part Number: | 3052-1.1/4B |
| Brand: | Bordo |
| Barcode: | 9326518029298 |
| Pack Qty: | 1 |
| Diameter (inch): | 1-1/4 |
| Drill Diameter (mm): | 37.5 |
| Lead: | Bottoming |
| Overall Length (mm): | 119 |
| Pitch (tpi): | 11.5 |
| Thread Form: | NPT |
About this item:
- 1.1/4" x 11.5 NPT Bottoming HSS Tap
- HSS NPT Bottoming Hand and Machine Tap.
- National Pipe Tapered is a US standard for tapered threads used to join pipes and fittings.
- ANSI/ASME standard B1.20.1 covers threads of 60° form with flat crests and roots.
- The taper on NPT threads allows them to form a seal when torqued as the flanks of the threads compress against each other.
- However a clearance remains between the crests and roots of the threads, resulting in a leakage around this spiral.
- This means that NPT fittings must be made leak free with the aid of thread seal tape or a thread sealant compound.
- For each 12" increase in distance from the end, the diameter increases by 3/4".
- Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.