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TPCT (WN1423) thermo plastic screw, 4.0 x 20 mm, countersunk, Article number TPCT400201. Surface finish: zinc plated. Thermo Plastic Screw manufactured to TPCT (WN1423), coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.
| Standard | TPCT (WN1423) |
| Property class / grade | - |
| Class (detailed) | - |
| Thread type | TP |
| Thread diameter | 4 mm |
| Pitch | 1.79 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Length | 20 mm |
| Thread length | 16.85 mm |
| Threading | Fully Threaded |
| Fully threaded | Yes |
| Head type | Countersunk Flat Head |
| Drive type | TX T20 |
| Drive key width | 3.95 mm |
| Head height | 3.15 mm |
| Head diameter | 8.4 mm |
| Surface treatment | Zinc Bright Passivation Fe/Zn P1 (ZPL 3+ |
| Surface treatment code | ZINCPL |
| Head Height Edge | 0.45 mm |
| Thread Minor Diameter | 2.17 mm |
| Torx size | T20 |
| Length | 20 mm |
| Article number | TPCT400201 |
| Category | Bolts and Screws / Thermo Plastic Screws |
| Primary standard | TPCT (WN1423) |
| Standard size | 4.0 x 20 mm |
| MOQ | 1 |