C. Sherman Johnson Turnbuckles

C. Sherman Johnson Turnbuckles: Precision Rigging Hardware Built to Last

When it comes to standing rigging and lifeline systems, few names carry as much weight as C. Sherman Johnson. Founded in 1958, the company began with a single, sailor-driven idea: design a turnbuckle that was genuinely better. That first product — the iconic Handy Lock Turnbuckle — launched a legacy that has made Johnson Marine the go-to source for marine turnbuckles worldwide.

Why Sailors Trust C. Sherman Johnson Turnbuckles

C. Sherman Johnson's turnbuckles aren't just hardware — they're load-rated, purpose-engineered components designed for the demands of offshore sailing, coastal cruising, and everything in between. The brand's engineering philosophy centers on preventing two of the most common failure points in rigging: galling and misalignment. Their swage-style and tubular turnbuckles feature chrome-plated bronze bodies specifically chosen to resist galling (seizing under high tension), paired with 316 stainless steel terminals for maximum corrosion resistance and strength in saltwater environments.

Turnbuckle Styles and Product Lines

C. Sherman Johnson offers a range of turnbuckle configurations to suit virtually any rigging application:

• Handy Lock Turnbuckle (01 Series): One of the brand's oldest and most trusted designs — neat, compact, and proven across decades of use on sailboats of all sizes.
• Tubular Turnbuckles (T-Style Jaw/Jaw): Featuring a forged silicon bronze body with an integral toggle jaw, these provide positive locking and ease of adjustment. The combination of bronze bodies with 316 stainless ends delivers a superior non-galling material pairing.
• Open Body Turnbuckles: Traditional open-body designs available in multiple thread sizes, compatible with Johnson's Wrap Pin Velcro locking devices to secure the barrel once tensioned.
• Splice Eye Turnbuckles: Engineered to work with Johnson's Splice Line system, allowing sailors to integrate high-tech Dyneema/Spectra lines — compliant with US Sailing and ISAF offshore racing requirements — into standard lifeline fittings.

Made in the USA, Engineered for the Sea

Every C. Sherman Johnson turnbuckle is manufactured in the United States — a commitment the company has maintained since its founding. This domestic production ensures tight quality control, consistent material standards, and the kind of accountability that offshore sailors depend on when conditions get serious. It's a key reason why Johnson Marine has grown into the industry's number-one supplier of lifeline fittings, trusted by boat designers, builders, and owners around the globe.

Whether you're re-rigging a performance racer, refreshing the lifelines on a bluewater cruiser, or replacing a single fitting on a daysailer, C. Sherman Johnson's turnbuckle lineup offers the precision, material quality, and long-term reliability that the marine environment demands.