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PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
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Stay Extenders

Hayn Stay Extenders are Type 316 stainless steel jaw-to-jaw extension fittings that add length to a standing rigging assembly where the existing hardware falls short of the required hardware factor, available in six pin sizes from 1/4" through 3/4". 

Strong Where It Matters

Stay Extenders

Stay extenders solve the common problem of a rigging assembly that is correctly specified for wire size and load but comes up short on total length — typically encountered during refit, rig modification, or when replacing hardware on a non-standard chainplate geometry. The clevis jaw on both ends connects to standard rigging pins, and open lengths from 3-3/4" through 7-13/16" provide meaningful extension range across the six available pin diameters. Manufactured from Type 316 stainless steel for long-term corrosion resistance in saltwater environments. 
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stay extenders

Stay Extenders

Part # D-Pin Dia. O-Open Length C-Closed Length E-Gap F-Width Weight lbs.
14EX 1/4″ 3-3/4″ 3/4″ 3/8″ Max. 5/8″ 0.1
516EX 5/16″ 4-3/8″ 7/8″ 1/2″ Max. 3/4″ 0.17
38EX 3/8″ 5″ 1″ 1/2″ Max. 1″ 0.33
12EX 1/2″ 5-5/8″ 1-1/8″ 5/8″ Max. 1-1/4″ 0.64
58EX 5/8″ 6-1/4″ 1-1/4″ 5/8″ Max. 1-1/2″ 1.28
34EX 3/4″ 7-13/16″ 1-9/16″ 3/4″ Max. 1-7/8″ 2.58
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. 
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