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BSI, formerly known as OS, are a well-respected Danish manufacturer, of excellent quality standing rigging fittings in marine grade stainless steel including T Terminals, Backing Plates, Toggles, Stemball Eyes.

BSI manufacture the world-renowned OS Wire Rigging System, a market-leading range of stainless-steel components suitable for standing rigging on all sizes of sailboats.

BSI employ the latest CNC technology in turning, milling, forging, welding, and surface treatment, working with only the best grade stainless and titanium.

The BSI team use CAD and FEA software to design and deliver innovative high quality rigging solutions with the Scandinavian touch.

BSI product development and design are founded on Finite-Element-Analysis, fatigue tests, careful choice of base materials, full traceability, and strict quality control.

BSI OS Swage T Terminal Backing Plate
BSI swage t-terminal
Hamma Shroud Terminal Backing Plate
Hamma Regatta T terminal Backing Plate