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Threlaco

Threlaco 40 Pack Ultra Durable Vinyl Fence Post Donut Heavy-Duty 2-3/8" Steel Post to 5" Vinyl Stabilizer Adapter for Fence Installation Meets 0.150" Wall Thickness

Based on 17 reviews
Condition: New
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$121.99

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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Nov 5
Order within 4 hours and 30 minutes

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At a glance

Condition
New
Color
Black
Number of Items
40
Model
JYD-Threlaco-2791
Dimensions
4.72 x 4.72 x 2.17 in
Material
nylon
Shape
Round

Features 5

  • Easy Installation: with an effortless installation process, the 40 pieces vinyl post adapters allow you to swiftly set up your fencing projects; This feature saves you time and effort, making fence installation a breeze
  • Extensive Compatibility is Key: our PVC fence collar boasts of impressive versatility in compatibility; Specifically crafted to accommodate 2-3/8" OD round pipes, this tool integrates seamlessly with 5" square posts; Easy integration, all the time
  • Enough to Apply: when it comes to cost effective efficiency, the vinyl fence post donut is a forerunner; With only 2 Fence Post Donuts required for each post, you can stretch resources, enhance project pace and save up on material
  • Efficient Technique: the innovative design of our Donut ensures a seamless installation experience; If you're a fencing professional looking for an efficient technique, this is for you; Precision and efficiency sums up the convenience offered by this ingenious innovation

Specs 16

Material nylon
Brand Threlaco
Item dimensions L x W x H 4.72 x 4.72 x 2.17 inches
Color Black
Shape Round
Brand Name Threlaco
Number of Items 40
Unit Count 40 Count

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

works well
Color: Black Number of Items: 10
works very good stong
Reviewed in the United States on August 13, 2026 by Carla
It fits
Color: Red Number of Items: 10
It fits
Reviewed in the United States on June 21, 2026 by Paul Sanders
works great and the price is on point
Color: Black Number of Items: 10
decent quality, excellent price. Fit perfectly on the fence steel post. I was able to connect my vinyl 6" post and adjust them until perfect 90 degrees. One thing to remember is good self tapping screws and not to put them where the rails would be. Otherwise, like me, you have to move them again.
Reviewed in the United States on December 19, 2025 by CP
Quick and easy
Color: Black Number of Items: 10
Came quick makes very quick work to put vinyl fences up
Reviewed in the United States on April 7, 2026 by Donnie A
Worked as expected
Color: Black Number of Items: 10
Great product
Reviewed in the United States on September 4, 2025 by Rayfab
Questionable return...
Color: Black Number of Items: 10
Do not buy this product unless you really need it! This is a waste of time and money! doesn't fit standard Fence pipe of 2 or even 23/8 . On top of that you have to pay to return it .. or go out of your way (travel a long distance to the nearest Amazon return center to return it... not coincidental I can assure you) Dear Amazon ... I've been with you for a long while ... this is not the type of treatment you give to your loyal customers!!! ... show more
Reviewed in the United States on April 1, 2026 by Amazon Customer
Make Your Fence Construction Easier!
Color: Black Number of Items: 10
My husband was so pleased when he discovered these fence post adapters. He had been fabricating something like them out of wood, but....what a genius idea if you can just purchase them! They worked perfectly to slide over the metal pole he cemented into the ground, and then slipped the vinyl post over them. Fit perfectly with no loose play. They are made of sturdy hard vinyl and seem like they will last forever....or at least as long as the fence does! The convenience is worth the purchase! ... show more
Reviewed in the United States on May 1, 2025 by CalGal57
brittle and breaks easliy
Color: Black Number of Items: 20
brittle and thinner than what is available, this is not a great product. These did not works, they broke after and during installation
Reviewed in the United States on January 6, 2026 by Jley
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