Search  for anything...

Insaga Decorative 4x4 Post Base Spike, Heavy Duty Fence Post Anchor Ground Spike for Mailbox Fence Post, Fence Stakes Post Support Base 24.2 x 3.7 x 3.7'' Outer Diameter (Inner Dia 3.5x3.5'', 4Pcs)

  • Based on 68 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $11.67 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Dec 28
Order within 17 hours and 58 minutes
Available payment plans shown during checkout

Style: B-4pcs


Features

  • Decorative Design: The head of the spike is designed to be decorative and hold posts up to 3.5'' in diameter, with its strong construction and reliable performance, fit standard 4x4 (lumber size 3.5 x 3.5) fence/mailbox/sign/lamp/deck/gazebo/pergola post and the like.
  • High-Quality Material: This Fence Stakes Post Support Base is the perfect solution for securely anchoring your fence post into the ground. It is made of heavy duty steel with a black powder coating and smooth welding to ensure that it will not rust or corrode over time. the anchor spike has a large diameter head(inner size 3.6''x3.6'') that provides maximum stability and security when driven into the ground.
  • Easy To Install: It's easy to install and requires no digging or cement, place the anchor in the position to be installed, put a short piece of wood (inner size 3.5x3.5'') and start hammering, check for lumber every few hits to ensure level, replace with your actual fence post when driving them into the ground.
  • Package Included: 4pcs x Post base spike, 24pcs x Screws.
  • Order with no worries: Pls contact with us any time if you have any problems about our products, we will always be there to help.

Product Dimensions: 24.2 x 3.7 x 3.7 inches


Item Weight: 18.71 pounds


Manufacturer: Insaga


Country of Origin: China


Item model number: INPA-002-4


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 28

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Mail box post anchor
Style: A-2pcs
That's right. I used it as a mail box post anchor. I just selected the site and used a wood block and a sledge hammer and drove it in the ground. Placed my post and secured it to the post with the supplied screws. Job done.
Reviewed in the United States on August 9, 2023 by Garry Phillips

  • post stake holders
Style: B-4pcs
These work great for 4x4 posts. The stakes go 2 feet into the ground and have 4 solid bolts to anchor the post to the holder. Very classy and very sturdy!
Reviewed in the United States on July 29, 2023 by James Y.

  • Sturdy
The construction seems sturdy, but they do bend if you hit a decent size rock. With that being said, none of them broke while driving them in. They look nice and seem like they'll hold up well. I used them in the construction of a 3' high garden fence, spaced about 5' apart, and for this project, they were perfect. ... show more
Reviewed in the United States on July 19, 2023 by Matt F.

  • Included hardware is junk
Style: A-2pcs
The post stake is sturdy and easy to install, it looks great! My only knock is the included hardware to secure the post is terrible! I broke the head of a few nuts trying to drill them in the base.
Reviewed in the United States on July 18, 2023 by AARON

  • A sturdy stake
Well made, well finished. With a sacrificial piece of 4x4 wood inserted into the receiver it survived a thorough bashing as it was pounded into the ground. My technique was to first drill a 18” pilot hole into the dirt with a 3/4” auger before inserting the post spike. That way I could confirm there were no large hidden rocks in its path. It was used as a support for a mail box on a 4x4 wooden post, and seems very rigid. Nice. ... show more
Reviewed in the United States on June 9, 2023 by Martin Batten

  • Heavy Duty
These post bases were exactly what I needed to put lighting along my cliff side driveway. 4x4 posts slipped right in and are securely held in place by screws.
Reviewed in the United States on June 20, 2023 by M. Trimmer

  • Post anchors are heavy duty
Bought these to anchor a pergola. Nice heavy weight and worked out perfectly for anchoring into ground and adding concrete. Would definitely buy again for another project.
Reviewed in the United States on June 19, 2023 by Nancy K

  • Sturdy
Style: A-2pcs
Works great for a mail box post
Reviewed in the United States on June 3, 2023 by Robert

Can't find a product?

Find it on Amazon first, then paste the link below.