I have several 4" x4" wood posts, with one single piece of steel wire going through each post.
Something like this:
Is there anything I can use to tighten and secure the wire in each post?
The first and last post will have a regular hook for the wire.
Best Answer
You might use a "barrel strainer" to tighten each horizontal run of wire.
Otherwise you can buy tensioners and "through-collar" kits specifically for cable fencing systems.