16217
| SAP Material Number | 2748189 |
| ISO Catalog Number | 16217 |
| Coating | Uncoated |
| [D1-TDZ] Thread Diameter Size | 3/8 – 18 |
| [L] Overall Length | 65.088 mm |
| [L3] Thread Length | 26.988 mm |
| [D] Adapter / Shank / Bore Diameter | 17.78 mm |
| [Z] Number of Flutes | 4 |
| Type of Thread | NPT/ANPT |
Manufactured from select high-speed steel.
Ground thread pipe taps are standard in American Standard Pipe Form (NPT) and American Standard Dryseal Pipe Thread Form (NPTF).
NPT threads require the use of a sealer, such as Teflon® tape or pipe compound.
NPTF dryseal threads give a pressure-tight joint without the use of a sealer.
The nominal size of a pipe tap is that of the pipe fitting to be tapped, not the actual size of the tap’ thread taper is 3/4″ per foot.
Alternate tap coatings are available as stock modifications.
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