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Heavy Duty Black Galvanised Ground Screw | Post Anchor | Metal Ground Post Spike for Timber Posts & Foundations

£5.99£28.99

-18%

Next Day Delivery available at the checkout, if ordered before 10:30am.

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Complete your project with

Upgrade your outdoor construction projects with our Heavy Duty Black Galvanised Ground Screw – the ultimate foundation solution for securely anchoring timber posts without the need for concrete.

Designed for strength, durability, and ease of installation, this robust metal ground screw acts as a post anchor, securely fixing into the ground to support a wide variety of heavy-duty outdoor structures. From carports and gazebosto decking bases, pergolas, fences, sheds, and garden buildings, this screw-in foundation offers unmatched convenience and longevity.

Key Features & Benefits:

  • 4mm Extra-Thick Galvanised Steel: Industrial-grade steel construction provides long-term durability and resistance to ground movement.
  • Black Powder-Coated Finish: Offers extra protection against corrosion, rust, and weather exposure — perfect for UK climate.
  • Timber Rot Prevention: The raised design elevates the timber off the ground, protecting wooden posts from moisture, decay, and insect damage.
  • Quick & Easy Installation: Screws directly into the ground using a driver rod (sold separately) — no digging or cement required.
  • Versatile Application: Suitable for fence post anchoring, decking supports, shed foundations, pergolas, carports, and temporary structures.
  • Eco-Friendly Alternative to Concrete: No need to mix or cure, making this an ideal green choice for sustainable construction.

Built for Heavy-Duty Construction Projects

This ground screw post anchor is engineered for high-load applications and provides a solid, stable base that outperforms traditional post spikes. Whether you’re installing in soft garden soil or compacted ground, this foundation screw bites deep and stays secure — reducing lateral movement and ensuring long-term stability.

It’s also ideal for temporary or modular structures where repositioning may be needed in future — simply unscrew and relocate without mess or hassle.

🛡️ Advanced Anti-Rust Protection – CoatArmour Shield

Worried about rust? Don’t be. Our brackets feature CoatArmour anti-corrosion technology, a powder-coated matte black finish that forms a protective barrier against the elements. This specialist coating is weatherproofUV-resistant, and rust-resistant, keeping your brackets looking sharp and performing flawlessly – year after year.


Perfect for:

  • Timber fencing and gates
  • Decking frames and garden platforms
  • Carport and pergola foundations
  • Wooden sheds, playhouses, and summerhouses
  • Outdoor structures in wet or unstable ground
  • Construction projects where concrete isn’t practical

What You’ll Need:

  • 1x Heavy Duty Galvanised Ground Screw
  • Driver rod sold separately – add to basket for fast installation
  • Set of screws for each ground screw – to be ordered separately

Why Choose Our Ground Anchors?

Our heavy-duty ground screws are trusted by tradesmen, landscapers, and DIYers across the UK. Designed for quick installation, superior strength, and long-lasting performance, they’re a smart, professional solution for any outdoor project where post stability and timber protection are critical.


Ready to build smarter foundations?

Order your heavy-duty black galvanised post screw today and give your timber the support it deserves — from the ground up.

Additional information

Weight N/A
Option: No selection

100mm – 4", 150mm – 6", one set of fixing screws