MTB Supply 24" Ground Spike Anchors for 4x4 Posts – 4-Pack Black Powder-Coated, 14-Gauge Steel

These MTB Supply 24-inch powder-coated steel ground spikes hold standard 4×4 (actual 3.5"×3.5") posts securely without digging or concrete.

Install fencing, mailbox posts, signs, small sheds, and decorative posts faster with a 4-pack of heavy-gauge anchors designed for outdoor durability. Each anchor is built from 14-gauge steel and finished with a black powder coat to resist chipping and rust. The anchors are simple to place and drive into the ground using a short piece of lumber as a driver, then swap in your permanent post and tighten the included set screws to lock it in place.

How do these ground spikes make installing a post faster than digging?

Ground spikes eliminate the need to dig holes and wait for concrete to cure, cutting installation time dramatically. You position the spike, drive it into the soil with a temporary wooden driver, slide in your post, and secure it using the supplied locking screws.

• 24" length for deep anchoring and improved lateral stability
• No concrete or excavation required — ideal for quick installs
• Two tightening screws per anchor provide a secure hold for 4×4 posts

What materials and finish protect the anchors outdoors?

Each anchor is made from heavy-duty 14-gauge steel to withstand the forces of installation and seasonal weather. A black powder-coated finish helps prevent peeling, chipping, and corrosion so the anchors maintain appearance and function over time.

• 14-gauge steel construction for structural strength
• Durable black powder coat resists rust and wear
• Built to hold up under repeated hammering during installation

Which post sizes and projects are compatible with these anchors?

These anchors accept standard 4×4 posts (actual lumber size 3.5"×3.5") and work for many small- to medium-scale outdoor projects. They are a versatile solution for temporary or permanent installations where concrete footings are impractical.

• Designed for 4×4 wooden posts (3.5"×3.5" actual dimension)
• Good for fences, mailboxes, signs, lamp posts, bird feeders, and small sheds
• Useful for both temporary fixtures and long-term installations

How simple is the installation process and what tools do I need?

Installation is straightforward and requires only basic tools and a short piece of wood to act as a driver while hammering the spike into the ground. After the spike is set, slide in the final post and tighten the included locking screws to secure it.

• Tools required: hammer or mallet and a short 3.5"×3.5" scrap wood for driving
• Includes two locking screws per anchor — no additional fasteners necessary
• Check level during driving and replace temporary driver with the actual post when finished

Who is this for: Homeowners, landscapers, and DIYers who need a faster, less invasive way to mount 4×4 posts will benefit from the MTB Supply 24" ground spikes. They suit anyone installing garden fences, mailbox posts, signage, small outbuildings, or decorative posts who prefers a durable steel anchor that avoids digging and concrete. If you want reliable holding power with a neat black finish and a simple install workflow, this four-pack gives you spare anchors for multiple projects or future repairs.