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Lifeline Single Gate Eyes – Swivel Type

Hayn Lifeline Single Gate Eyes (Swivel Type) are Type 316 stainless steel swage terminal fittings with an integrated swivel single eye end, providing a rotating fixed loop connection point for pelican hooks and gate hardware that prevents cable twist at the attachment interface.  

Strong Where It Matters

Lifeline Single Gate Eyes – Swivel Type

The swivel eye rotates independently of the swage body, allowing the eye to move freely as the pelican hook is operated or the lifeline changes angle underway without transmitting rotational stress back into the wire terminal. This makes the swivel type the preferred choice over a fixed single gate eye in applications where the hook sees frequent use or the cable geometry creates a tendency toward twist at the connection point. Available in machine swage configuration for imperial wire from 1/8" through 1/4" and metric wire from 4mm through 5mm, with Handy Crimp stud options for 1/8" and 3/16" wire.

lifeline single gate eyes swivel type

Imperial Wire Sizes – Machine Swage

Part # W-Wire Diameter Thread X-Eye Depth F-Eye Width HD-Head Diameter HT-Head Thickness H-Hardware Factor Weight lbs.
SWELLS18 1/8″ 1/4-28 31/32″ 11/16″ 19/32″ 9/32″ 1 13/16″ 0.11
SWELLS532 5/32″ 5/16-24 31/32″ 11/16″ 19/32″ 9/32″ 1 7/8″ 0.13
SWELLS316 3/16″ 5/16-24 31/32″ 11/16″ 19/32″ 9/32″ 1 15/16″ 0.14
SWELLS14 1/4″ 3/8-24 31/32″ 11/16″ 19/32″ 9/32″ 2 7/32″ 0.16

Metric Wire Sizes – Machine Swage

Part # W-Wire Diameter Thread X-Eye Depth F-Eye Width HD-Head Diameter HT-Head Thickness H-Hardware Factor Weight lbs.
SWELLSM04 4mm 5/16-24 31/32″ 11/16″ 19/32″ 9/32″ 1 7/8″ 0.14
SWELLSM05 5mm 5/16-24 31/32″ 11/16″ 19/32″ 9/32″ 1 15/16″ 0.14

With Handy Crimp Stud

Part # W-Wire Diameter Thread X-Eye Depth F-Eye Width HD-Head Diameter HT-Head Thickness H-Hardware Factor Weight lbs.
SWECLLS18 1/8″ 1/4-28 31/32″ 11/16″ 19/32″ 9/32″ 2″ 0.11
SWECLLS316 3/16″ 5/16-24 31/32″ 11/16″ 19/32″ 9/32″ 2″ 0.13
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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 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.