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PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
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Hi-MOD Compression Studs

Hayn Hi-MOD Compression Studs are Type 316 stainless steel threaded wire terminals that combine the field-installable Hi-MOD compression body with a threaded stud end, providing a direct connection into turnbuckles, adjusters, and other internally threaded rigging fittings. 

Strong Where It Matters

Hi Mod Compression Studs

The stud configuration makes these the right choice when a wire run terminates directly into a threaded fitting rather than a clevis or toggle connection, covering an exceptionally broad range of thread sizes from 1/4-28 through 1-3/8-12 to match the full spectrum of Hayn and compatible hardware. Like all Hi-MOD terminals, the crown ring spaces wire strands evenly around the cone so each one carries equal load, and both the cone and crown ring are fully reusable for inspection and reassembly. Available for 1x19 and 7-strand imperial wire from 1/8" through 1", and metric wire from 3mm through 26mm in 1x19, 7-strand, Compact Strand, and Dyform configurations. 
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hi mod compression stud

Imperial Wire Sizes

1×19 7×7 or 7×19 Wire ⌀ P-Thread H-Hardware Factor T-Thd Length Weight lbs.
14CTS18 14CTS18-7 1/8″ 1/4-28 5/8″ 2″ 0.05
14CTS532 14CTS532-7 5/32″ 1/4-28 11/16″ 2″ 0.07
516CTS532 516CTS532-7 5/32″ 5/16-24 7/8″ 2-1/4″ 0.09
516CTS316 516CTS316-7 3/16″ 5/16-24 1″ 2-1/4″ 0.14
38CTS316 38CTS316-7 3/16″ 3/8-24 7/8″ 2-5/8″ 0.17
38CTS732 38CTS732-7 7/32″ 3/8-24 7/8″ 2-5/8″ 0.17
716CTS732 716CTS732-7 7/32″ 7/16-20 1″ 2-7/8″ 0.20
38CTS14 38CTS14-7 1/4″ 3/8-24 1-1/8″ 2-5/8″ 0.24
716CTS14 716CTS14-7 1/4″ 7/16-20 1-1/8″ 2-7/8″ 0.28
12CTS14 12CTS14-7 1/4″ 1/2-20 1-1/16″ 3-1/2″ 0.35
12CTS932 12CTS932-7 9/32″ 1/2-20 1-1/8″ 3-1/2″ 0.43
12CTS516 12CTS516-7 5/16″ 1/2-20 1-1/2″ 3-1/2″ 0.62
58CTS516 58CTS516-7 5/16″ 5/8-18 1-1/2″ 3-3/4″ 0.75
58CTS38 58CTS38-7 3/8″ 5/8-18 1-3/8″ 3-3/4″ 1.02
34CTS38 34CTS38-7 3/8″ 3/4-16 1-1/2″ 4-5/8″ 1.24
34CTS716 34CTS716-7 7/16″ 3/4-16 1-1/2″ 4-5/8″ 1.22
34CTS12 34CTS12-7 1/2″ 3/4-16 2″ 4-5/8″ 1.95
78CTS12 78CTS12-7 1/2″ 7/8-14 2″ 5-1/2″ 2.85
78CTS916 78CTS916-7 9/16″ 7/8-14 2-1/8″ 5-1/2″ 2.87
1CTS58 1CTS58-7 5/8″ 1.0-12 2-3/4″ 6-1/4″ 4.35
118CTS34 118CTS34-7 3/4″ 1 1/8-12 2-1/2″ 6-3/4″ 5.27
114CTS78 114CTS78-7 7/8″ 1 1/4-12 2-7/8″ 7-3/4″ 7.36
138CTS1 138CTS1-7 1″ 1 3/8-12 3-5/8″ 8-1/2″ 14.5

Metric Wire Sizes

1×19 7×7 or 7×19 Cmpct Strnd / Dyform Wire ⌀ P-Thread H-Hardware Factor T-Thread Length Weight lbs.
14CTSM03 14CTSM03-7 – 3mm 1/4-28 5/8″ 2″ 0.05
14CTSM04 14CTSM04-7 – 4mm 1/4-28 11/16″ 2″ 0.07
516CTSM04 516CTSM04-7 – 4mm 5/16-24 7/8″ 2-1/4″ 0.09
516CTSM05 516CTSM05-7 516CTSM05-D 5mm 5/16-24 1″ 2-1/4″ 0.14
38CTSM05 38CTSM05-7 38CTSM05-D 5mm 3/8-24 7/8″ 2-5/8″ 0.17
38CTSM06 38CTSM06-7 38CTSM06-D 6mm 3/8-24 1-1/8″ 2-5/8″ 0.24
716CTSM06 716CTSM06-7 716CTSM06-D 6mm 7/16-20 1-1/8″ 2-7/8″ 0.28
12CTSM06 12CTSM06-7 12CTSM06-D 6mm 1/2-20 1-1/16″ 3-1/2″ 0.35
12CTSM07 12CTSM07-7 12CTSM07-D 7mm 1/2-20 1-1/8″ 3-1/2″ 0.43
12CTSM08 12CTSM08-7 12CTSM08-D 8mm 1/2-20 1-1/2″ 3-1/2″ 0.62
58CTSM08 58CTSM08-7 58CTSM08-D 8mm 5/8-18 1-1/2″ 3-3/4″ 0.75
58CTSM10 58CTSM10-7 58CTSM10-D 10mm 5/8-18 1-3/8″ 3-3/4″ 1.02
34CTSM10 34CTSM10-7 34CTSM10-D 10mm 3/4-16 1-1/2″ 4-5/8″ 1.24
34CTSM12 34CTSM12-7 34CTSM12-D 12mm 3/4-16 2″ 4-5/8″ 1.95
– – 34CTSM12-CS 12mm 3/4-16 2″ 4-5/8″ 1.95
78CTSM12 78CTSM12-7 78CTSM12-D 12mm 7/8-14 2″ 5-1/2″ 2.85
– – 78CTSM12-CS 12mm 7/8-14 2″ 5-1/2″ 2.85
78CTSM14 78CTSM14-7 78CTSM14-D 14mm 7/8-14 2-1/8″ 5-1/2″ 2.87
– – 78CTSM14-CS 14mm 7/8-14 2-1/8″ 5-1/2″ 2.87
1CTSM16 1CTSM16-7 1CTSM16-D 16mm 1.0-12 2-3/4″ 6-1/4″ 4.35
– – 1CTSM16-CS 16mm 1.0-12 2-3/4″ 6-1/4″ 4.35
118CTSM19 – 118CTSM19-D 19mm 1 1/8-12 2-1/2″ 6-3/4″ 5.27
– – 118CTSM19-CS 19mm 1 1/8-12 2-1/2″ 6-3/4″ 5.27
114CTSM22 – 114CTSM22-D 22mm 1 1/4-12 2-7/8″ 7-3/4″ 7.36
– – 114CTSM22-CS 22mm 1 1/4-12 2-7/8″ 7-3/4″ 7.36
138CTSM26 – 138CTSM26-D 26mm 1 3/8-12 3-5/8″ 8-1/2″ 14.5
– – 138CTSM26-CS 26mm 1 3/8-12 3-5/8″ 8-1/2″ 14.5
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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