Fence Post Anchor Ground Spike, 8-Pack 36 x 4 x 4 Inch Outer Diameter (Inner Diameter 3.5 x3.5 Inch), Metal Black Powder Coated Post Ground Spike, for Mailbox Deck Garden Railing

Thickened hard steel: Made of thickened solid hard steel, the increased thickness significantly increases its hardness, making the post anchor strong, durable and resistant to deformation.
Corrosion and rust protection: The fence posts are coated with a powder layer that provides strong protection against corrosion and rust. It withstands erosion from soil and rain, while protecting the wood from rot, which greatly extends its lifespan.
Fits 3.5" Wood: The square nail has a total height of 36" with a nail length of 30" and an inner width of 3.7". It is suitable for 3.5" x 3.5" square lumber, providing excellent support.
Complete Set: The set includes 8-pack, which meets your daily needs and is ideal for installing and securing fences. It not only provides stable support, but also provides exceptional protection, making it the best choice.
Extra secure: The post anchor ground kit comes with several nuts and screws. After inserting the nail, use these to tighten the connection between the wood and the nail, ensuring a secure fit. The wood can also be replaced after long-term use, allowing for recycling without the need for repurchasing.