Skip to content
Close
SEARCH
CONTACT
PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
Hayn Product Header (2240 x 660 px)

Lifeline Interlocking Gate Eyes – Threaded Type

Hayn Lifeline Interlocking Gate Eyes (Threaded Type) are Type 316 stainless steel threaded fittings with an interlocking eye end that connects directly to a matching gate eye, providing a clean, shackle-free gate closure for lifeline systems.

Strong Where It Matters

Lifeline Interlocking Gate Eyes – Threaded Type

A straightforward choice for gate installations where cable twist at the connection point is not a concern. Left hand thread configurations in 1/4-28, 5/16-24, and 3/8-24 ensure correct engagement with Hayn lifeline adjuster and turnbuckle bodies across the full wire size range. Available 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.  
Request specifications
SWELLI316

Imperial Wire Sizes

Part # W-Wire Diameter Thread HD-Head Diameter HT-Head Thickness H-Hardware Factor Weight lbs.
14ELLI18 1/8″ 1/4-28 19/32″ 9/32″ 3 5/8″ 0.16
516ELLI532 5/32″ 5/16-24 19/32″ 9/32″ 3 15/16″ 0.19
516ELLI316 3/16″ 5/16-24 19/32″ 9/32″ 4″ 0.21
38ELLI14 1/4″ 3/8-24 19/32″ 9/32″ 3 3/4″ 0.30

Metric Wire Sizes

Part # W-Wire Diameter Thread HD-Head Diameter HT-Head Thickness H-Hardware Factor Weight lbs.
516ELLIM04 4mm 5/16-24 19/32″ 9/32″ 3 15/16″ 0.19
516ELLSM05 5mm 5/16-24 31/32″ 11/16″ 19/32″ 0.10
516ELLIM05 5mm 5/16-24 19/32″ 9/32″ 4″ 0.20

Imperial with Handy Crimp

Part # W-Wire Diameter Thread HD-Head Diameter HT-Head Thickness H-Hardware Factor Weight lbs.
14ECLLI18 1/8″ 1/4-28 19/32″ 9/32″ 4″ 0.17
516ECLLI316 3/16″ 5/16-24 19/32″ 9/32″ 3 7/8″ 0.21
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

Hayn Product Header (2)

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. 
Request Technical Specifications