Turnbuckles

Stainless steel turnbuckles are tension-adjusting devices used in rigging systems. They connect, tighten, and align cables, ropes, rods, and wire assemblies. Designed for high-load and high-exposure applications, our 316 stainless steel turnbuckles resist corrosion and last in harsh conditions. Commonly used in marine turnbuckles, architectural frameworks, and industrial builds, these steel rigging turnbuckles provide precision and long-term performance.

Marsh Fasteners offers both Eye & Eye and Jaw & Jaw styles in polished, marine-grade stainless steel for strength and durability.

Eye & Eye Turnbuckles

Eye & Eye turnbuckles feature a closed-loop forged eye on each end.

Used in:

  • Marine rigging and cable lifelines

  • Cable eye tensioning systems

  • Balustrades and cable railings

  • General fencing or rope work

Options include:

  • Double eye turnbuckles in 316 stainless

  • Sizes range from 1/4″ to 1″ thread diameters

  • Multiple body lengths for varied adjustment ranges

Eye bolts and u bolts
AdobeStock 843810365 scaled - Turnbuckles - Jaw & Jaw<br />316 Stainless Steel

Jaw & Jaw Turnbuckles

Jaw & Jaw turnbuckles (also called clevis or fork turnbuckles) provide a secure connection using bolt-and-pin closure.

Used in:

  • Structural bracing and tie rod systems

  • Construction rigging

  • Plate-to-plate or hardware-to-frame tensioning

  • Industrial and marine hardware connections

Options include:

  • Clevis jaw turnbuckles with cotter pins

  • Sizes from 1/4″ to 1″ thread diameters

  • Multiple take-up lengths for precise tensioning

Technical Specifications

All Marsh Fasteners 316 stainless turnbuckles meet demanding project specs. Below are the key technical details:

  • Material
    316 Marine-Grade Stainless Steel

  • Thread Type
    Right-hand / Left-hand opposing threads (UNC or metric)

  • End Fittings
    Eye & Eye or Jaw & Jaw

  • Size Range
    Thread diameters: 1/4″ to 1″; length varies

  • Take-Up Adjustment
    2″–6″ depending on model

  • Working Load Limit (WLL)
    Varies by size and type — refer to product page

  • Finish
    Polished for aesthetics and corrosion resistance

  • Compliance
    Meets marine, architectural, and rigging hardware standards

Benefits of Stainless Steel Turnbuckles

Our marine grade turnbuckles offer dependable strength in demanding jobs. Key benefits include:

  • Corrosion resistance
    316 stainless resists salt, moisture, and harsh air

  • Adjustable tension
    Fine-tune cables or rods without removing connections

  • Versatile uses
    Works for marine rigging, railings, scaffolding, and more

  • Long life span
    Holds up under stress and outdoor exposure

  • Quick adjustment
    Threaded bodies allow tool-free tightening on site

These are corrosion-resistant turnbuckles built for repeat use in demanding conditions.

Choosing the Right Stainless Steel Turnbuckle

Here’s how to select the best stainless turnbuckle option for your project:

  • End-fitting type:

    Use Eye & Eye for closed-loop applications
    Use Jaw & Jaw where hardware must connect to a plate or bolt

  • Material grade:

    Always choose 316 stainless in marine or corrosive environments

  • Thread size / body length:

    Match to cable or rod size
    Body length affects how much take-up range is available

  • Working Load Limit (WLL):

    Check load specs on the product page

  • Environment:

    Coastal, marine, and high-humidity environments require marine-grade material

Need help with your turnbuckle size guide? Contact our team for application support.

Why Choose Marsh Fasteners

Marsh Fasteners is a leading supplier of reliable turnbuckles and stainless hardware.

  • We specialize in marine-grade fasteners and 316 stainless steel turnbuckles

  • Products are selected and finished to meet real-world durability needs

  • We carry Eye & Eye and Jaw & Jaw types for a wide range of installations

  • Our experts help you pick the right size, thread, and configuration

Whether you’re working on a sailboat, a railing system, or industrial framing, we can help.

What Our Customers Say

These guys always have what I’m looking for in stock. I got tired of going to Home Depot to in search of the fasteners I needed for a project only to find out that either they didn’t stock that size, they were out of them or they only had packages of one or two of that particular fastener. Not to mention spend 15 minutes sorting through various packages put back in the wrong place. I’m always building or repairing things and some of the fasteners I need are a weird size. Marsh Fasteners always has them in stock, their staff is polite, and their prices are fair.

Brian Artigas

I love marsh fasteners!! Kathy and her grandson are the nicest people you will ever meet!! Kathy and Chris were my old bosses. Kathy is the best.

Kyle Cirasuolo

This is a great company to buy stainless steel fasteners from. Fast service, quality products, and competitive pricing. Don’t waste your time at the Big Orange or Big Blue box stores.

James Tinsley, Jr

Related Products

We also supply other stainless rigging hardware to match our turnbuckles:

Stainless Steel Threaded Rod

Stainless bolts, nuts, washers, and threaded rods

Stainless Steel Threaded Rod

Wire rope fittings and cable assemblies

Stainless Steel Threaded Rod

Hooks, eye bolts, and rigging screws for full cable tension systems

See our full hardware range to build your complete tensioning setup.

Contact Us

Ready to order or need help selecting the right turnbuckle?
Call us at 1-800-453-4642 or visit our Contact Page to speak with a stainless fastener specialist.

The Best Fasteners for Marine Applications

FAQ’s

Is installation difficult?2025-12-29T02:22:39-05:00

No. Most installs are straightforward. Final tensioning can often be done by hand.

What is “take-up length” vs “closed length”?2025-12-29T02:22:25-05:00

Take-up is the adjustment range. Closed length is the shortest configuration when fully tightened.

How do they work mechanically?2025-12-29T02:22:12-05:00

Turnbuckles use opposing threads to draw ends together or push them apart as the body is turned.

Can they be used for structural applications?2025-12-29T02:21:59-05:00

Yes. Select the right WLL and end-fitting type for structural bracing or tie rod use.

Are these suitable for marine environments?2025-12-29T02:21:44-05:00

Yes. All turnbuckles on this page are marine-grade stainless steel.

How do I choose the right size?2025-12-29T02:21:31-05:00

Base it on cable/rod diameter, load requirements, and take-up length needed.

What types of end fittings are available?2025-12-29T02:21:16-05:00

Eye & Eye and Jaw & Jaw are the most common; both are available in multiple sizes.

What does “316 stainless steel” mean?2025-12-29T02:21:01-05:00

It’s a high-grade alloy containing molybdenum, which resists rust and pitting from saltwater.

Why choose stainless steel over galvanized?2025-12-29T02:20:48-05:00

316 stainless offers better corrosion resistance, especially in marine and coastal conditions.

What is a turnbuckle?2025-12-29T02:20:16-05:00

A turnbuckle is a rigging device used to adjust tension between two components, often cables or rods.

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