
Threading inserts Unified
| Carbon steel / Alloy steel | N O | | P |
| Stainless steel | | N | M |
Cast iron K Non-ferrous metals N Applicable Dimension (mm) Carbide
thread
| Insert | Description | angle | |
| | | type |
| 16ER 12UN | 12 | 0.27 | 1.5 | | N | N |
| 14UN | 14 | 0.23 | 1.5 | | N | N |
| IC | 16UN | 16 | 0.2 | 1.1 | Full | | |
| | | | | | N | N |
PNA 9.525 3.68 4 60
| 18UN | 18 | 0.18 | 1 | profile N | | N |
| RE PDX | S 20UN | 20 | 0.16 | 1 | | | |
| | | | | | N | N |
| 24UN | 24 | 0.13 | 0.8 | | N | N |
| 16ER 08UN-TF | 8 | 0.43 | 1.75 | | N N N N | |
| 10UN-TF | 10 | 0.34 | 1.5 | | N N N N | |
| 12UN-TF | 12 | 0.27 | 1.5 | | N N N N | |
| IC | 13UN-TF | 13 | 0.25 | 1.5 | | N N N N | |
| | | | | Full | | |
| PNA | 14UN-TF | 14 | 4 9.525 3.68 0.23 | 1.5 | 60 | N N N N | |
| | | | | profile | | |
| 16UN-TF | 16 | 0.2 | 1.1 | | N N N N | |
| RE | PDX S | | | | | | |
| 18UN-TF | 18 | 0.18 | 1 | | N N N N | |
| 20UN-TF | 20 | 0.15 | 1 | | N N N N | |
| 24UN-TF | 24 | 0.12 | 0.8 | | | J24, J25, J26 |
| J | | | | | | N N N N | |
| 16ER 08UN-TQ | 8 | 0.43 | 1.75 | | | N N N |
| 10UN-TQ | 10 | 0.34 | 1.5 | | | N N N |
| 12UN-TQ | 12 | 0.27 | 1.5 | | | N N N |
| IC | 13UN-TQ | 13 | 0.25 | 1.5 | | | |
| | | | | Full | | N N N |
| PNA | 14UN-TQ | 14 | 4 9.525 3.68 0.23 | 1.5 | 60 | | |
| | | | | profile | | N N N |
| RE | PDX S 16UN-TQ | 16 | 0.2 | 1.1 | | | N N N |
| Molded Chipbreaker | 18UN-TQ | 18 | 0.18 | 1 | | | N N N |
| 20UN-TQ | 20 | 0.15 | 1 | | | N N N |
| 24UN-TQ | 24 | 0.12 | 0.8 | | | N N N |
| IC | | | | | Full | | |
| PNA | 22ER 08UN | 8 | 4.85 0.43 4.9 12.7 | 2.1 | 60 | N | N |
| | | | | profile | | |
| RE PDX | S | | | | | | |
Right-hand shown Applicable toolholders Applicable threads
| Insert description | Applicable toolholders | Alicable Thread M : Metric UN : Unified | R, Rc (PT) (BSPT) : Tapered Pipe W : Whitworth |
| 16ER | KTNR..-16(JCT) / KTNSR..-16 | pp UNF : Unified Fine Thread | NPT : American National Tapered Pipe |
| ... | S..-KTNL16 | G (PF) : Parallel Pipe | Tr : 30˚ Trapezoidal |
| 22ER... | KTNR..-22 | | |