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1. Can offer chrome or nickel pated for a smoother surface.
2. Reliable quality
3, Stable perfermance
4, Size: 3/8"-6"
| specification | The whorl made in Great Britain is thick Steel whorl | BSP Screw Thread of Thin Steel | Metric thread | Pipe Thread(Germany Standard) | |
| The metric system | British system | ||||
| φ6 | G1/4″ | C13 | M14×1.5 | PG7 | |
| φ8 | 5/16″ | G3/8″ | C15 | M16×1.5 | PG9 |
| φ10 | 1/4″ | G3/8″ | C15 | M16×1.5 | PG9 |
| φ12(13) | 3/8″ | G3/8″ | C19 | M20×1.5 | PG11/PG13.5 |
| φ15(16) | 1/2″ | G1/2″ | C19 | M20×1.5/M24×1.5 | PG1.35/PG16 |
| φ20(19) | 3/4″ | G3/4″ | C25 | M27×2/M30×2 | PG21 |
| φ25 | 1″ | G1″ | C31 | M33×2/M36×2 | PG29 |
| φ32 | 1/1/4″ | G1/1/4″ | C39 | M42×2/M48×2 | PG29 |
| φ38(40) | 1/1/2″ | G1/1/2″ | C51 | M48×2/M60×2 | PG36/PG42 |
| φ51(50) | 2″ | G2″ | C63 | M60×2/M72×2 | PG48 |
| φ64(70) | 2/1/2″ | G2/1/2″ | C75 | M76×2 | |
| φ75(80) | 3″ | G3″ | M88×2 | ||
| φ100 | 4″ | G4″ | M114×2 | ||
| φ125 | 5″ | G5″ | M140×2 | ||
| φ150 | 6″ | G6″ | M164×2 | ||
Lock Nut zinc die cast
