
FEATURES Material specifi c for blind hole application.
HSS-E OX Most suitable for stainless steel, steel and alloy steel. SL
THCHT OX treatment reduces welding troubles.
Recommended Tapping Speeds Depending On Materials PO ISO Vc (m/min) ISO Vc (m/min)
| P2 | ≤5 | H | M1 | ≤5 | H | |
| P3 | ≤5 | H | M2 | ≤5 | H | |
| P4 | ≤5 | I | ST | |||
| P7 | ≤5 | H |
H 1st choice I suitable ROLL ANSI-ZELX SS NPTF
| NPTF THL TYPE: US055 | TCTR (tolerance) DC LF | Ø (mm) ON | Hole Ø (mm) LK | Code K K | THCHT (chamfer) | Basic major Ø (mm) TYP | LF ( inch ) THL E: US | THL ( inch ) 056 | LS ( inch ) DCON ( inch ) DCON LF | K ( inch ) | LK ( inch ) LK | NOF | Type | Stock K K | CARBIDE LONG HAND TAPS |
| ANSI | |||||||||||||||
| 1/16-27 | ANSI G | 5.95 | 5.99 | Y83660 | 2.5P | 7.770 | 2.125 | 0.687 | - 0.31 | 0.234 | 0.375 | 4 | 055 | f | EG (STI) |
| 1/8-27 | ANSI G | 8.3 | 8.34 | Y83661 | 2.5P | 10.117 | 2.125 | 0.75 | - 0.44 | 0.328 | 0.375 | 4 | 055 | f | |
| ANSI G | 8.3 | 8.34 | Y83662 | 2.5P | 10.117 | 2.125 | 0.75 | - 0.31 | 0.234 | 0.375 | 4 | 056 | f | ||
| 1/4-18 | ANSI G | 10.7 | 10.75 | Y83663 | 2.5P | 13.426 | 2.437 | 1.062 | - 0.56 | 0.421 | 0.437 | 4 | 055 | f | SPECIAL |
| 3/8-18 | ANSI G | 14.1 | 14.17 | Y83664 | 2.5P | 16.866 | 2.562 | 1.062 | - 0.7 | 0.531 | 0.5 | 4 | 055 | f | THREADS, |
| 1/2-14 | ANSI G | 17.4 | 17.44 | Y83665 | 2.5P | 20.980 | 3.125 | 1.375 | - 0.69 | 0.515 | 0.625 | 4 | 056 | f | GAUGES |
| 3/4-14 | ANSI G | 22.7 | 22.75 | Y83666 | 2.5P | 26.325 | 3.25 | 1.375 | - 0.91 | 0.679 | 0.687 | 4 | 056 | f | |
| 1 -11 1/2 | ANSI G | 28.5 | 28.6 | Y83667 | 2.5P | 32.934 | 3.75 | 1.75 | - 1.13 | 0.843 | 0.812 | 4 | 056 | f | THREAD MILLS |