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PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
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Architectural Tensioner Fork System

The Hayn Architectural Tensioner Fork System is a factory-assembled machine swage concealed thread cable rail tensioning system that uses opposing left and right hand thread forks to tension the cable run through rotation, with a Universal Wall Eye and full accessory suite for wood, steel, and concrete mounting applications. 

Strong Where It Matters

Architectural Tensioner Fork System

The fork system tensioning method requires cable rotation during installation, so both left and right hand thread versions must be used together to achieve the turnbuckle effect that pulls the run to proper tension — a critical installation note that affects how the system is specified and ordered. Factory assembled to field dimensions in eight configurations covering wire sizes from 1/8" through 1/4" imperial and 3mm through 6mm metric, with a 1-1/2" adjustment range and a maximum run length of 40 feet per span without intermediate tensioning. Longer runs are achievable with Intermediate Turnbuckle Assemblies, and the Universal Wall Eye and Accessories table covers all mounting scenarios including threaded wall eyes, cover plates, wood inserts, and drop-in concrete anchors across 1/4-20 and 3/8-16 thread sizes. 
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Internal_Adjuster-Swage_Fork-1

Machine Swage – Factory Assembled to Field Dimensions

Left Hand Thread Part # Right Hand Thread Part # Thread Size Wire Size Adjustment Range Max. Run Length
14TFA18SLH 14TFA18SRH 1/4-28 1/8″ 1-1/2″ 40′
14TFAM03SLH 14TFAM03SRH 1/4-28 3mm 1-1/2″ 40′
14TFA532SLH 14TFA532SRH 1/4-28 5/32″ 1-1/2″ 40′
14TFAM04SLH 14TFAM04SRH 1/4-28 4mm 1-1/2″ 40′
14TFA316SLH 14TFA316SRH 1/4-28 3/16″ 1-1/2″ 40′
14TFAM05SLH 14TFAM05SRH 1/4-28 5mm 1-1/2″ 40′
516TFA14SLH 516TFA14SRH 5/16-24 1/4″ 1-1/2″ 40′
516TFAM06SLH 516TFAM06SRH 5/16-24 6mm 1-1/2″ 40′

System requires rotation of cable for tensioning and must utilize both left and right hand thread for turnbuckle effect.

Universal Wall Eye and Accessories

Part # Description
AWE14-1420RH Threaded Wall Eye – 1/4″ Hole x 1/4-20 Thread
AWE516-3816RH Threaded Wall Eye – 5/16″ Hole x 3/8-16 Thread
AFP34-1420RH Wall Eye Cover Plate – 3/4″ Diameter x 1/4-20 RH Thread
AFP34-1428RH Wall Eye Cover Plate – 3/4″ Diameter x 1/4-28 RH Thread
AFP34-1428LH Wall Eye Cover Plate – 3/4″ Diameter x 1/4-28 LH Thread
AFP1-3816RH Wall Eye Cover Plate – 1.0″ Diameter x 3/8-16 RH Thread
AWI1420RH Architectural Wood Insert – 1/4-20 Right Hand Thread
AWI1428RH Architectural Wood Insert – 1/4-28 Right Hand Thread
AWI1428LH Architectural Wood Insert – 1/4-28 Left Hand Thread
DIA-14 Drop-In Anchor for Concrete – 1/4-20 Thread
DIA-38 Drop-In Anchor for Concrete – 3/8-16 Thread
14LNRC Hex Nut – 1/4-20 Right Hand Thread
38LNRC Hex Nut – 3/8-16 Right Hand Thread
14WAS Flat Washer – 1/4″
38WAS Flat Washer – 3/8″
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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