Turnbuckles and Tensioners

Turnbuckles and tensioners are essential components for tensioning, adjusting and securing cables, shrouds, guardrails, lifelines and other elements on board.

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⛓️ NAUTICAL TURNING HOOKS

Turnbuckles are mechanical devices used to adjust the tension of cables and shrouds , especially on sailboats.

✅ Where to use them:

• Shrouds and mast stays

• Lifelines (safety cables on the sides)

• Lifeline for safety harnesses

• Also on awnings or tubular structures

🔧 Types of turnbuckles:

📐 Materials:

• AISI 316 stainless steel : salt-resistant and durable

• Some models in chromed bronze or zinc/aluminium (less common)

⚠️ Important note:

• Always lock the turnbuckle with safety nuts or cotter pins

• Some models have plastic covering or heat shrink sleeve to prevent abrasions and jamming

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🔩 TENSIONERS

Turnbuckles are similar to turnbuckles, but often simpler and used for:

• Awnings, covers, tarpaulins

• Quick-fix points (less structurally critical)

• Nets, elastic ropes, light cables

They are generally:

• More compact and maneuverable

• With hook/eye , hook/hook , or carabiner structure

• Used where high loads are not required

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🛠️ Key differences

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🔧 Practical advice

• If you use shroud turnbuckles: ✔️ correct sizing and ✔️ certified tightness

• For lifelines: choose fork turnbuckles and flexible stainless steel cable

• For awnings: technical plastic or stainless steel hook/hook tensioners are also suitable