CLGR® Rigging Screw Body Stainless Steel, also known as Closed Turnbuckle Body, and Tubular Turnbuckle Body. Someone also called tensioners, bottle screws or adjusters.
This is a rigging screw with a right and left-hand threaded stud on either side, allowing precise tension adjustment by rotating the body. Manufactured from high-quality 316 grade solid stainless steel bar for excellent corrosion resistance and a clean, professional appearance.
These closed bodies are commonly paired with lock nuts to secure the set tension. They are available for wire rope diameters ranging from 4mm up to 36mm, and can be supplied in a variety of end combinations.
For applications requiring different configurations, we also offer open body versions.
Brand | CLGR® |
Standard | European Type |
Material | AISI316 Stainless Steel |
Size | M4, M5, M6, M8, M10, M12,M14, M16,M20, M22, M24, M27, M30, M36 1/4" UNF, 5/16" UNF, 3/8" UNF, 1/2" UNF, 5/8" UNF, 3/4" UNF |
Processing | Machining |
Finish | Highly Polishing |
Tips | Corrosion Resistant |

Tips: With Groove / Without Groove are Available
Part. No. | Size(M) | D(mm) | L(mm) | KG/100 | B.L.KG. |
CRA4RSB4 | M4 | 7 | 70 | 1.1 | 500 |
CRA4RSB5 | M5 | 8 | 80 | 1.5 | 800 |
CRA4RSB6 | M6 | 10 | 95 | 3.2 | 1300 |
CRA4RSB8 | M8 | 13 | 105 | 5 | 2350 |
CRA4RSB10 | M10 | 17 | 125 | 11 | 3500 |
CRA4RSB12 | M12 | 21 | 150 | 17.5 | 5400 |
CRA4RSB14 | M14 | 21 | 165 | 21 | 5900 |
CRA4RSB16 | M16 | 26.5 | 190 | 38 | 8000 |
CRA4RSB20 | M20 | 33.5 | 210 | 64 | 13000 |
CRA4RSB22 | M22 | 40 | 273 | 117 | 17000 |
CRA4RSB24 | M24 | 42.4 | 320 | 150 | 20000 |
CRA4RSB27 | M27 | 55 | 345 | 243 | 25500 |
CRA4RSB30 | M30 | 55 | 380 | 234 | 31000 |
CRA4RSB36 | M36 | 64 | 410 | 396 | 43000 |
Part. No. | Size(M) | D(mm) | L(mm) | KG/100 | B.L.KG. |
CRA4RSBUNF6 | 1/4" UNF | 11 | 92 | 3 | 1300 |
CRA4RSBUNF8 | 5/16" UNF | 13 | 112 | 6 | 2350 |
CRA4RSBUNF10 | 3/8" UNF | 17 | 120 | 11 | 3500 |
CRA4RSBUNF12 | 1/2" UNF | 21 | 150 | 18 | 5400 |
CRA4RSBUNF16 | 5/8" UNF | 26.5 | 192 | 38.5 | 8000 |
CRA4RSBUNF20 | 3/4" UNF | 33.5 | 220 | 66 | 13000 |