2022 Ronstan Marine Catalogue - VIEW CATALOGUE

Turnbuckle Selection Advice

PHOTO CREDIT:© Najad – Yachts of Sweden

Type 10 Turnbuckles


From their clean lines to the use of the highest grade materials and quality finish, Ronstan Type 10 turnbuckles are engineered to deliver performance while enhancing the appearance of any yacht, or tensile project.


Type 10

Type 10 closed body turnbuckles have a sleek, modern profile with no sharp edges. They are easily adjusted by turning the unique adjustment nut, which is free to rotate within the sleeve on the turnbuckle body, and are secured with a quick turn on the locking nut. A sight hole is provided in the body to verify adequate thread engagement.

With fine thread and single end adjustment, Type 10 turnbuckles are much easier to adjust than conventional turnbuckles, and the use of dissimilar but compatible metals for the threaded components avoids the risk of thread seizure. Toggles are designed with full lateral articulation for easy installation and connection compatability.

Fine, rolled threads

Ronstan rigging fittings have rolled threads for maximum strength and reliability – unlike cut threads, the stainless steel bar is formed up and down to create a thread with the grain remaining unbroken and flowing the full length of the thread. Threads are UNF (Unified National Fine), short pitch threads for fine adjustment and reduced adjustment effort.

Roll swage integrity

Swage fittings suit industry standard roll swaging presses and dimensions are derived from the original ‘Milspec’ for maximum integrity. They are suitable for use with modern and traditional wire constructions, including 1x19, 7x19 and compact strand.

2-stage bearing
Rolled threads for maxium strength


Type 10 Turnbuckles is supplied as a body with lock nut, and a separate threaded end. This allows tailoring/combining components to meet varying needs and reduces assembly time. Below are links to the body and threaded end ranges with size information and specification data.

Toggle/Eye Turnbuckle Combination

Toggle end body and threaded eye end Threaded Eye End Toggle End Bodies

Eye/Eye Turnbuckle Combination

Eye end body and eye threaded end Threaded Eye End Eye End Bodies

Turnbuckle Handle Kit and Grip

Eye end body and eye threaded end Turnbuckle Handle

Replacement Lock Nuts

Replacement Lock Nut for Type 10 Turnbuckles Replacement Lock Nuts