Leading UK Manufacturer of Round Closed Body Turnbuckles.
We specialise in the precision manufacture and supply of high-integrity Round Closed Body Turnbuckles (Rigging Screws), engineered as a sleek, streamlined tensioning component for architectural steelwork, modern facades, and premium structural bracing applications.
Designed with a smooth cylindrical closed barrel, these turnbuckles conceal internal threads while delivering an aesthetically clean profile and reliable load adjustment.
Utilising advanced in-house machining, thread tapping, and bar-turning cells, we ensure consistent structural performance, smooth rotational adjustment, and precise thread tolerances across every production run.
| D | L | DI |
|---|---|---|
| Thread | mm | mm |
| M12 | 70 | 18 |
| M16 | 85 | 22 |
| M20 | 144 | 29 |
| M24 | 155 | 35 |
| M30 | 170 | 43 |
| M36 | 180 | 52 |
| M42 | 195 | 60 |
| M48 | 210 | 68 |
| M56 | 230 | 80 |
| M64 | 240 | 91 |
| M76 | 268 | 108 |
| M90 | 290 | 129 |
| M100 | 315 | 143 |
Threaded Right Hand (RH) and Left Hand (LH) Thread.
