Jaw & Jaw Turnbuckles
Turnbuckles have the same applications as rigging screws, but have a generally smaller size range and shorter adjustment. The main benefit of a turnbuckle is that it may have a greater ability to be tightened under load. Also, there may be a wider scope for providing means for locking while in service.
Rigging Screws and Turnbuckles in accordance with Australian Standards are available in various grades. The standard Nobles grade of supply is Grade P. Other grades (S and L) are available and some stocks may be held in specific sizes.