Sealoc Calibrated Turnbuckles

Calibration marks for precise adjustment and tuning of rig tension.

Allow accurate and repeatable settings of rig tension and precise adjustment, using an easy-to-read scale on the side of the turnbuckle barrel. Instead of turning a stud or turnbuckle body between two ends, you make a single adjustment on a coupling nut, which allows finer adjustment and more tension on the wire than with a normal turnbuckle. An integral toggle prevents off-axis loads on either the wire or turnbuckle body. Machine swage fitting at upper end. 316 Stainless steel bodies and terminals. Nickel-plated bronze coupling nuts.

Key Features 

• Laser etched calibration marks for precise adjustment and tuning of rig tension
• Tapered lock nut locks the threaded terminal in position without split pins
• Designed to not catch on sails and no tape required
• Coupling nut remains free to rotate on body with no effect on rig tension
• The coupling nut is manufactured from AlSi Bronze to prevent thread seizure
• 316 stainless body and threaded swage terminal
• Handle kit allows rapid adjustment of rig settings without tools
• An easy-to-read scale on the side of the turnbuckle barrel
• Allows finer adjustment than with a normal turnbuckle