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Zareba Pin-Lock Wood and T-Post Insulators, 25-Pack, Black

Based on 204 reviews
Condition: New
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$13.88
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Availability: In Stock.
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Arrives Saturday, Nov 14
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At a glance

Condition
New
Size
25 Pack
Dimensions
3.26 x 8.6 x 9.85 in
Weight
13.2 oz

Features 5

  • SECURE ATTACHMENT: Pin-lock design firmly holds electric fence wire to standard t posts and metal fence posts, ensuring reliable connection for your electric fencing system without energy loss through the post structure
  • WIRE COMPATIBILITY: Works with 9 gauge through 22 gauge high-tensile steel wire and aluminum wire (both regular and up to 1/4 in diameter)
  • EASY RELEASE: Molded pin mechanism allows quick wire removal by simply pulling the pin, making fence maintenance and adjustments fast and efficient for busy farming operations and cattle fencing projects
  • DURABLE CONSTRUCTION: Black weather-resistant material withstands outdoor conditions while maintaining secure grip on hot wire fence installations, providing long-lasting performance for your wire fencing needs

Description

Zareba T Post Insulators deliver reliable performance for your electric fence system. This 25-pack of black electric fence insulators securely fastens electrified wire to standard t-posts, wood posts, and metal posts without energy loss. Designed for compatibility with 9 gauge through 22 gauge high- tensile steel wire, aluminum wire, all polywire types, and polyrope up to 1/4 in diameter, these t-post insulators electric fence components provide versatile fencing solutions for livestock containment and property protection. The pin-lock design features a molded pin that grips electric fence wire tightly, ensuring consistent electrical conductivity throughout your fence line. When adjustments or repairs are needed, simply pull the pin for quick wire release. This user-friendly mechanism saves time during installation and maintenance while maintaining secure wire positioning under various weather conditions. Built for durability in agricultural environments, these fence post insulators withstand exposure to sun, rain, and temperature fluctuations. The black construction resists UV degradation, extending service life in outdoor applications. Whether you're establishing cattle fencing, farm fence perimeters, or hot wire fence systems, these electric fence post insulators provide dependable wire management. Each insulator accommodates standard fence posts commonly used in agricultural and residential fencing projects. The secure grip design prevents wire slippage while allowing controlled tension adjustment. Installation requires no special tools - simply position the insulator on your fence post and secure the electric fence wire using the pin mechanism. This value pack includes 25 pin-lock insulators, providing sufficient quantity for medium-sized electric fencing projects or replacement needs. The consistent black color maintains a professional appearance across your electric wire fence system

Specs 4

Product Dimensions 3.26 x 8.6 x 9.85 inches
Item Weight 13.2 ounces
Manufacturer Zareba Systems
Item model number IWTPLB-Z

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Works well for rope and tape
Size: 25 Pack
Works well for rope and tape. Not for wire. Wire will eat through the plastic pin over time.
Reviewed in the United States on April 6, 2026 by Bob

I highly recommend these for several reasons!
Size: 25 Pack
I have tried all sorts of different styles and brands of plastic electric fence insulators and these have held up far better than any others I have tried. Unlike these insulators, those made of yellow plastic break down and crack under under our intense Florida sun very quickly and are a waste of money in my opinion unless you just intend to use the fence for one season. These insulators also can be used on wood posts or T posts and with the latter they just snap on securely rather than wrap around with a piece of plastic which is where the others usually break first or where you need to screw them together which is a hassle and where that type usually breaks. These insulators also have a pin that can be removed which makes attaching or removing the wire very easy. They are slightly more expensive than some of the other insulators out there but in my opinion they are well worth the price and in the long run they actually cost less because they last longer. These are now the only insulators I buy and nearly all of the others I have tried are now in the trash. ... show more
Reviewed in the United States on May 5, 2014 by Sparky

Fence insulators
Size: 25 Pack
These are black plastic electric fence insulators that will clip to a 'T' post, or can be nailed or screwed to a wood post, the corner of a barn, or pretty much anything else you can run a nail or screw into. These are one of the few pin-lock insulators that have a large enough opening for twisted horse wire, or barbed wire (in between the barbs). The locking pin seems to be a little thicker than most, making me think it might be a little stronger than most. Works well, and the wire can be easily removed from the insulator by pulling the pin. The pin locks in pretty tight (which is a good thing) but may require you to use pliers or a screwdriver under the head to remove it. ... show more
Reviewed in the United States on February 21, 2026 by J. Bruha

Very well built
Size: 250 Pack
Used these on our wooden post for cattle fencing. Very good product not cheap plastic. Ran 24,000 feet of high tensile wire have not had 1 failure
Reviewed in the United States on February 5, 2025 by david dixon

This product almost makes fencing fun
Size: 25 Pack
I own a ranch and have used several different systems for our electric fencing. This is the best of the lot. Went up fast and easy, holds wire taut and all in all almost makes fencing fun
Reviewed in the United States on June 21, 2023 by greasewood

Used for electric fence but.....
Size: 25 Pack
I ran dual wires - the top with thin electric fence poly wire and the bottom with thick poly rope. worked well. Be careful, this is the only model with 2 holders; the others only have one I found out the hard way.
Reviewed in the United States on June 15, 2025 by old time reviewer

Really nice
Size: 25 Pack
So glad I got these. I really like them. A lot more sturdy than others and they didn’t break during our cold spell like the cheaper ones did.
Reviewed in the United States on July 11, 2021 by Stephanie

Does not work for T-post (actually it does), but it LEAKS. DO NOT BUY
Size: 25 Pack
Just as another reviewer said, it is too long/big to fit between the bumps on T-post. Update: my bad. It is supposed to be installed over the bumps/studs, not between. Update: after I installed these, found a fatal design flaw of this product: there are two open slits at the two sides of the insulator, and a small triangular ledges. When it rains, water can stay there and it will spark. Useless. ... show more
Reviewed in the United States on July 1, 2019 by Warren
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