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Used to adjust the tension in line wire or wire rope.
For supporting large shelves where strength is required.
Used to put the tension into chain link fencing to prevent sagging between posts, similar to the small No.423 Bolt Locking Strainers.
Used on concrete or wooden posts. A cam and ratchet system makes it easy to add tension.
Mainly used for putting tension in long fencing runs of heavy mild steel wire and high tensile wire
Complete with built-in ratchet locking system for greenhouse and general garden use.