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The Hayn Intermediate Tensioner Turnbuckle Assembly (Concealed Thread Design) is a swage-to-swage mid-run tensioning fitting that extends a Concealed Thread cable rail run by up to 40 feet per assembly, available in machine swage and Hayn Grip configurations across wire sizes from 1/8" through 1/4" imperial and 3mm through 6mm metric.
The 40-foot maximum run length per span is a practical constraint on any cable rail installation, and the intermediate tensioner is the solution for longer runs that would otherwise require an additional end post to break the span. Installed at an intermediate post, it provides 1-1/2" of tension adjustment at the mid-run point without interrupting the concealed thread aesthetic at the post face. Available in 12 machine swage configurations factory assembled to field dimensions and six Hayn Grip configurations for on-site installation, covering thread sizes of 1/4-28 and 5/16-24 across the full wire size range.
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