
■ Suitable for hard and abrasive materials <2D such as cast irons. Nitride
Cast irons Ductile cast irons
(m/min) ( m/ min)
| Segment:1A | ||||||||||
| Size | Class | Code | Chamfer | L ih | ℓ ih | Ds ih | K ih | ℓk ih | No. of fl | TYPE |
| (nc) | (nc) | (nc) | (nc) | (nc) | lutes | |||||
| Fo i | r Unified | i Threads | ||||||||
| 1/4-20UNC | GH3 | Y86001 | 4P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 1/4-20UNC | GH3 | Y86002 | 1.5P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 1/4-20UNC | GH5 | Y86003 | 4P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 1/4-20UNC | GH5 | Y86004 | 1.5P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 1/4-28UNF | GH3 | Y86005 | 4P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 1/4-28UNF | GH3 | Y86006 | 1.5P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 5/16-18UNC | GH3 | Y86007 | 4P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 5/16-18UNC | GH3 | Y86008 | 1.5P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 5/16-18UNC | GH5 | Y86009 | 4P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 5/16-18UNC | GH5 | Y86010 | 1.5P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 5/16-24UNF | GH3 | Y86011 | 4P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 5/16-24UNF | GH3 | Y86012 | 1.5P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 3/8-16UNC | GH3 | Y86013 | 4P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |
| 3/8-16UNC | GH3 | Y86014 | 1.5P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |
| 3/8-16UNC | GH5 | Y86015 | 4P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |
| 3/8-16UNC | GH5 | Y86016 | 1.5P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |
| 3/8-24UNF | GH3 | Y86017 | 4P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |