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All Products ➞ Goliath Threading Tools ➞ Taps Hand & Machine ➞ HSS Pipe Taps and Reamers ➞ NPSF Dryseal
3/8" x 18 NPSF Bottoming HSS Tap - Goliath
| Part Number: | C83ZKCC4 |
| Brand: | Goliath |
| Barcode: | 9349009015679 |
| Pack Qty: | 1 |
| Diameter (inch): | 3/8 |
| Drill Diameter (mm): | 15 |
| Lead: | Bottoming |
| Overall Length (mm): | 75 |
| Pitch (mm): | 18 |
| Tolerance: | BS949-1969 |
| # Flutes: | 4 |
| Standard: | BS949-1969 |
| Thread Form: | NPSF Dryseal |
About this item:
- 3/8" x 18 NPSF Bottoming HSS Tap - Goliath
- HSS Bright Finish NPSF Hand and Machine Bottoming Tap.
- Pipe taps are much shorter than a similar size of regular hand tap, but the design features are the same.
- Goliath HSS taps provide a high hardness to toughness ratio, compressive and tensile strength, good abrasion resistance and resistance to micro-chipping, ensuring a long tool life.
- National Pipe Straight Fuel (Dryseal) is used for internal threads and an NPTF external thread can be screwed into it to provide both a satisfactory mechanical connection and hydraulic seal.
- A combination of a parallel and tapered thread would not appear to be ideal but it is widely used.
- Many quick disconnect couplers for example have the NPSF thread and are recommended by the manufacturer for use with NPT and NPTF.
- 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.
- Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
- Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.