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PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
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Termination Stud System

The Hayn Termination Stud System is a Traditional Cable Rail end fitting solution available in turnbuckle assembly and fixed stop configurations, covering wire sizes from 1/8" through 3/8" across machine swage, Hayn Grip, and Handy Crimp versions for post sizes from 1" through 6". 

Strong Where It Matters

Termination Stud System

The Termination Stud Turnbuckle Assembly is the tensioning version, providing 3" to 4" of adjustment range depending on thread size and a 50-foot maximum run length per span — the broadest run length of any Traditional cable rail tensioning system in the Hayn lineup. Post size options from 1" through 6" on several wire sizes make it compatible with the full range of wood, steel, and composite post geometries common in residential and commercial cable rail applications. The fixed stop version covers wire sizes from 1/8" through 3/8" in machine swage and Handy Crimp configurations for the non-tensioning end of the run, with cap sizes from 1/2" through 15/16" to match the wire diameter. 
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Termination Stud Turnbuckle Assembly – Machine Swage

Part # Thread Wire Size Max. Post Size Adjustment Range Max. Run Length
14TTLL18TS1 1/4-28 1/8″ 1″ 3″ 50′
14TTLL18TS 1/4-28 1/8″ 2″ 3″ 50′
14TTLL18TS4 1/4-28 1/8″ 4″ 3″ 50′
14TTLL18TS6 1/4-28 1/8″ 6″ 3″ 50′
14TTLL532TS1 1/4-28 5/32″ 1″ 3″ 50′
14TTLL532TS 1/4-28 5/32″ 2″ 3″ 50′
14TTLL316TS1 1/4-28 3/16″ 1″ 3″ 50′
14TTLL316TS 1/4-28 3/16″ 2″ 3″ 50′
14TTLL316TS4 1/4-28 3/16″ 4″ 3″ 50′
14TTLL316TS6 1/4-28 3/16″ 6″ 3″ 50′
516TTLL316TS 5/16-24 3/16″ 2″ 3-1/4″ 50′
516TTLL14TS 5/16-24 1/4″ 2″ 3-1/4″ 50′
12TTLL516TS 1/2-20 5/16″ 2″ 4″ 50′
12TTLL38TS 1/2-20 3/8″ 2″ 4″ 50′

Termination Stud Turnbuckle Assembly – Hayn Grip™

Part # Thread Wire Size Max. Post Size Adjustment Range Max. Run Length
14TTHG18TS1 1/4-28 1/8″ 1″ 3″ 50′
14TTHG18TS 1/4-28 1/8″ 2″ 3″ 50′
14TTHG18TS4 1/4-28 1/8″ 4″ 3″ 50′
14TTHG18TS6 1/4-28 1/8″ 6″ 3″ 50′
14TTHG316TS1 1/4-28 3/16″ 1″ 3″ 50′
14TTHG316TS 1/4-28 3/16″ 2″ 3″ 50′
14TTHG316TS4 1/4-28 3/16″ 4″ 3″ 50′

Termination Stud Turnbuckle Assembly – Handy Crimp™

Part # Thread Wire Size Max. Post Size Adjustment Range Max. Run Length
14TTCLL18TS1 1/4-28 1/8″ 1″ 3″ 50′
14TTCLL18TS 1/4-28 1/8″ 2″ 3″ 50′
14TTCLL18TS4 1/4-28 1/8″ 4″ 3″ 50′
14TTCLL18TS6 1/4-28 1/8″ 6″ 3″ 50′
14TTCLL316TS1 1/4-28 3/16″ 1″ 3″ 50′
14TTCLL316TS 1/4-28 3/16″ 2″ 3″ 50′
14TTCLL316TS4 1/4-28 3/16″ 4″ 3″ 50′
14TTCLL316TS6 1/4-28 3/16″ 6″ 3″ 50′

Termination Stud Fixed Stop – Machine Swage

Part # Wire Size Cap Size
TSLL18 1/8″ 1/2″
TSLL532 5/32″ 9/16″
TSLL316 3/16″ 9/16″
TSLL14 1/4″ 9/16″
TSLL516 5/16″ 15/16″
TSLL38 3/8″ 15/16″

Termination Stud Fixed Stop – Handy Crimp™

Part # Wire Size Cap Size
TSCLL18 1/8″ 1/2″
TSCLL316 3/16″ 9/16″
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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