Swageless Lag Screw Turnbuckle

What does swageless mean?

A swageless terminal or termination is a type of end fitting that will be applied to wire rope. Connection points are easily created between two ropes. Or to create a connection between the rope and an existing fitting on your worksite. Its use will depend upon the type of swageless fitting chosen.

The swageless term refers to the fact that this is only a temporary connection, and will be manually fitted by hand. There are special jaw type parts within the fitting ( you will notice these protruding from the end in the image). Which, when tightened up will clamp onto the rope holding it firmly in place. This is in contrast to a swaged terminal, which has been pressured down by a machine using extreme force and pressure, which creates a permanent fitting.

A major benefit of swageless terminals is that the connection is not permanent and therefore both the terminal and wire rope can be disconnected from each other. They can then be re-used which makes them popular in a range of industries. They can also be fitted on site with the right tools.

Swageless lag screw turnbuckles are specialized cable railing tensioners used to anchor stainless steel wire ropes directly into wood, composite, or masonry posts without requiring hydraulic crimping or swaging tools. They are the go-to hardware for achieving a clean, modern deck railing view because they allow for direct surface mounting.

It is usually used in conjunction with the Swageless Lag Screw Terminal 

Key Product Highlights

Tool-Free Cable Connection: Feature an internal compression cone or multi-jaw locking mechanism that automatically bites onto the wire rope as you tighten the end cap, eliminating the need for expensive swaging tools.

Lag Screw Anchor: The threaded lag screw portion drives directly into wood posts, making it perfect for layout walls or posts where passing a bolt completely through is impossible or undesirable.

Marine Grade Materials: Typically constructed from high-durability T316 Stainless Steel or finished with Black Oxide to resist harsh coastal salt-spray and outdoor elements.

Multi-Angle Versatility: Suitable for both flat horizontal runs and angled staircases.

Pre-Drill the Post: Always drill a pilot hole into your wood post using a drill bit slightly smaller than the lag screw core. This prevents the wood from splitting or cracking during installation.

Mount the Turnbuckle: Drive the lag screw end into the post until the body sits flush against the surface. For standard installations, you will usually pair a turnbuckle on one end with a Swageless Terminal Lag Screw on the opposing end.

Insert the Cable: Open the swageless end of the turnbuckle body. Push your raw, uncut stainless steel cable (typically 1/8" or 3/16" diameter) deep into the locking barrel until it bottoms out.

Lock and Compress: Twist the compression cap tightly. The internal jaws clamp onto the cable, creating a high-tensile hold.Tension the System: Rotate the main turnbuckle body. This acts as a screw mechanism that draws the cable tighter, eliminating any visible sag or bounce. Secure the built-in jam nut to lock the tension permanently into place.

The Lag Screw Turnbuckle should be paired with a terminal or other tensioning hardware in order to insure proper cable tension for your deck railing. The terminals are made from T316 Marine Grade Stainless Steel.

Whether you're a professional installer or a DIY enthusiast, Haifan Railing's Swageless Turnbuckle Lag Screw is the ideal solution for your cable railing needs. Order yours today to experience the ease and efficiency of this innovative product.  

We offer a wide variety of parts for cable railing systems to contractors and home-owners alike. You'll find all the right fittings for your custom cable railing projects here!

Why Choose Us?

Haifan Railing has helped millions of families with their cable railing projects during the past years. We believe that home renovation should be easy and affordable. So we work with every effort to provide quality products and professional service, to make Haifan a reliable brand.

If you are looking into architectural hardware or planning a DIY build, would you like to know what size steel cable this typically accommodates, or do you need a recommendation on the proper crimping tools required for installation?

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