Screw-in Ring Insulator 25pk | Gallagher Wood Post

What Farmco Recommends It For:

We recommend the Gallagher screw-in ring insulator for running polywire or cord along timber posts on permanent and semi-permanent electric fences. It’s ideal for paddock subdivisions, strip grazing lines and offset wires on existing wooden fences. Each pack of 25 gets a good stretch of fence up and running.

Why It’s a Farmco Favourite:

This insulator screws straight into the post, so there’s no stapling or nailing. The clever design guarantees no shorts, and an orange wear indicator shows you exactly when it’s time to replace it. Tough UV-resistant plastic and a 10-year warranty mean it lasts in the harsh Aussie sun.

Why Choose a Screw-in Ring Insulator?

A screw-in ring insulator is one of the fastest ways to fit polywire or cord to timber posts. Its extra sharp point bites into the wood easily, so you can screw it in by hand or with a power drill. For quicker installs along a long fence line, use the Gallagher [Screw In Insulator Drill Bit (G71300)], sold separately. On hard timber, drill a 4–5mm pilot hole first.

Secure Wire Hold

The angled slot lets you clip wire in quickly, and the closed ring keeps it held firmly in place. Your wire stays put in strong winds and when stock push against the fence.

Know When to Replace It

Wire movement wears insulators over time. When the orange wear indicator starts to show through, you know it’s time to swap in a new one. That means less guessing and fewer power leaks along your fence.

Built to Last

Gallagher makes these insulators from strong, high-density, UV-resistant plastic that won’t go brittle after a few summers. A 10-year warranty backs them.

Complete Your Fence

Pair these insulators with Gallagher [polywire], [fence energisers] and [warning signs] from the Farmco [electric fencing range]. For setup tips, read Gallagher’s [Introduction to Electric Fencing Brochure].