Find a Service Center
- Inch
- 3/8-18 NPTF Thread Size & Type
- Semi-Bottoming Chamfer Type
- HSS Material
- Bright Coating
applications
- Medium hook for general-purpose
features
- NPT threads require a sealer (Teflon tape or pipe compound)
- NPTF threads produce a pressure tight joint without using a sealer
- Ground thread for accuracy
| Thread Creation | Thread Cutting |
| Thread Type | NPTF |
| Blank Construction | USCTI Table 311 |
| Shank Square Length - Metric | 12.7 mm |
| Diameter - Decimal | 0.375 in |
| Chamfer Type | Semi-Bottoming |
| Thread Size - Metric | 9.52 mm |
| Thread Length | 1.0625 in |
| Pitch Dia. | N/A |
| Direction of Cut | Right Hand |
| Shank Size - Metric | 17.78 mm |
| Diameter - Fraction | 3/8 in |
| Thread Pitch | N/A |
| Ground Threads | Yes |
| Shank Square Width | 0.531 in |
| Shank Square Width - Metric | 13.49 mm |
| Thread Per Inch | 18 |
| Thread Length - Metric | 26.99 mm |
| Interrupted Thread | No |
| Thread Size & Type | 3/8-18 NPTF |
| Material | HSS |
| Tap Type | Pipe |
| Overall Length | 2.5625 in |
| Tap Size | 3/8 in |
| Shank End Feature | Square |
| Standard Projection | 0.454 in |
| Threads per Inch | 18 |
| Thread Size | 3/8 in |
| Thread Size - Decimal | 0.375 in |
| Operation Type | Thru-Hole |
| Spiral Point | No |
| Truncated Threads | No |
| No. of Flutes | 4 |
| Shank Square Length | 0.5 in |
| Weight | 0.7 LB |
