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Toggle Jaw and Open Body

The Hayn Toggle Jaw and Open Body turnbuckle pairs an articulating Type 316 stainless steel toggle jaw with a chromed bronze open body, combining angular freedom at the chainplate end with direct visual access to thread engagement during tensioning and inspection. 

Strong Where It Matters

Toggle Jaw and Open Body

This is the open body counterpart to the closed body toggle jaw turnbuckle, offering the same articulating jaw geometry and wire size coverage with the added benefit of visible thread engagement at both ends during dockside tensioning and inspection. The chromed bronze open body resists corrosion while preventing galling at the threaded interface, and the toggle jaw articulates freely to prevent side-loading as the rig moves under load. Available in six configurations with pin diameters from 1/4" through 3/4", open lengths from 7-5/8" through 17-7/16", and wire diameter compatibility from 3/32" through 1/2". 

toggle jaw and open body

Toggle Jaw and Open Body

Part # Wire ⌀ Thread D-Pin ⌀ O-Open Length C-Closed Length L-Body A-Jaw Depth E-Jaw Gap F-Jaw Width Weight lbs.
14FBJ 3/32″ – 5/32″ 1/4-28 1/4″ 7-5/8″ 6-1/8″ 4-1/2″ 3/4″ 1/4″ 5/8″ 0.20
516FBJ 5/32″ – 3/16″ 5/16-24 5/16″ 8-1/4″ 6-5/8″ 5″ 13/16″ 5/16″ 3/4″ 0.33
38FBJ 3/16″ – 1/4″ 3/8-24 3/8″ 9-1/8″ 7-3/8″ 5-1/2″ 1″ 3/8″ 7/8″ 0.49
12FBJ 1/4″ – 5/16″ 1/2-20 1/2″ 10-15/16″ 8-15/16″ 6-1/2″ 1-7/16″ 1/2″ 1-5/32″ 1.13
58FBJ 5/16″ – 3/8″ 5/8-18 5/8″ 1′-1 3/4″ 11-1/4″ 8″ 1-15/16″ 5/8″ 1-1/2″ 2.06
34FBJ 7/16″ – 1/2″ 3/4-16 3/4″ 1′-5 7/16″ 1′-2 7/16″ 10″ 2-5/16″ 3/4″ 1-7/8″ 3.81
Engineered In America Every Hayn fitting is designed and manufactured at our facility in Rocky Hill, Connecticut — the same American workmanship that has set the standard for stainless steel rigging hardware since 1950.
Cold-Worked Production Hayn fittings are cold-worked, not cast. That distinction matters: the cold-working process refines grain structure, increases fatigue resistance, and produces a fundamentally stronger component — one built to perform when the load comes on it.
Precision Manufacturing Our Rocky Hill production floor runs CNC vertical mills, CNC lathes, large-capacity mill-turn centers, and waterjet cutting systems — all configured to produce hardware that meets exact specifications, every time.
75+ Years of Excellence Hayn has been engineering and manufacturing marine and architectural rigging hardware since 1950. That track record isn't just history, it's the design knowledge, failure data, and continuous improvement that goes into every product we make. 
  • Type 316 stainless steel construction for superior saltwater corrosion resistance
  • Manufactured in Rocky Hill, Connecticut to Hayn's proprietary tolerances
  • Precision-machined using advanced CNC manufacturing equipment



  • Engineered for seamless integration in marine and architectural rigging systems

  • Short lead times on both standard and custom components

  • Backed by 75 years of marine and architectural hardware expertise

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Let's Build Something Together

 Hayn has been engineering precision rigging hardware since 1950. So whatever your project demands, you're building with hardware that's been proven at sea and on structure for generations.