CLGR® stainless steel rigging screw machined fork/fork, also known as Rigging Screw Machined Jaw/Jaw, Bottle Screw, Barrel Strainers, Closed Body Turnbuckle or pipe body turnbuckle.
Manufactured from AISI 316 marine-grade stainless steel solid bar with a high polished stunning finish, this closed body turnbuckle offers excellent resistance to humidity, salt air, and seawater – making it ideal for both coastal and offshore environments.
The machined fork ends allow direct attachment onto small pad eyes without the need for extra shackles, and are fitted with lock nuts to secure the set tension. The jaws feature removable clevis pins for flexible connection.
Tension adjustment is simple – hold the end fittings stationary while rotating the body to open or close the unit.
Available in thread diameters: M4, M5, M6, M8, M10, M12, M14, M16, M20, M22, M24, M27, M30, M36. All lengths are measured from centre of pin to centre of pin.
Brand | CLGR® |
Material | AISI316 Stainless Steel Rigging Screw |
Turnbuckle Type | Closed Body Rigging Screw |
End Fittings | Machined Fork/Fork |
Size | M4, M5, M6, M8, M10, M12,M14, M16, M20, M22, M24, M27, M30, M36 Rigging Screw |
Processing | Body: Reduced Tube / Machining Fork: Full Machining / Cast |
Finish | Highly Polishing |
Tips | Corrosion Resistant |
Country of Origin | China |

Part No. | Thread Size | A (mm) | D (mm) | H (mm) | L1 (mm) | L2 (mm) | KG/100 | B.L.KG. |
CRA4RSFF4 | M4 | 5.5 | 4 | 8 | 115 | 175 | 4 | 500 |
CRA4RSFF5 | M5 | 6.5 | 5 | 10 | 135 | 195 | 6 | 800 |
CRA4RSFF6 | M6 | 7.5 | 6 | 10 | 160 | 230 | 10.5 | 1250 |
CRA4RSFF8 | M8 | 11 | 8 | 11 | 180 | 255 | 21 | 2350 |
CRA4RSFF10 | M10 | 12 | 9 | 14 | 210 | 300 | 35.5 | 3500 |
CRA4RSFF12 | M12 | 14 | 12 | 20 | 270 | 380 | 66 | 5100 |
CRA4RSFF14 | M14 | 15 | 12 | 22 | 295 | 415 | 74 | 5900 |
CRA4RSFF16 | M16 | 17 | 16 | 26 | 340 | 480 | 150 | 8000 |
CRA4RSFF20 | M20 | 20 | 19 | 30 | 370 | 520 | 320 | 13000 |
CRA4RSFF22 | M22 | 22 | 22 | 35 | 455 | 635 | 850 | 17000 |
CRA4RSFF24 | M24 | 25 | 25 | 38 | 530 | 760 | 1150 | 20000 |
CRA4RSFF27 | M27 | 30 | 28 | 41 | 580 | 810 | 1800 | 25500 |
CRA4RSFF30 | M30 | 35 | 32 | 52 | 655 | 915 | 2610 | 31000 |
CRA4RSFF36 | M36 | 35 | 35 | 52 | 695 | 970 | 3340 | 43000 |