Threaded Deep Anchor for Sand, Soft Soil & Wind Zones

Need threaded hold-downs with maximum reach? The 900mm GR14 threaded anchor gives you deep grab through narrow holes—ideal for modular bases, wind-prone gear, or coastal installations. No flared flights needed. Just drill a pilot hole, drive it in, and use a nut to secure your project. Purpose-designed for where conventional ground screws won’t fit.

  • GroundGrabba-threaded-top-earth-ground-anchor-art-installations-sculptures-in-ground-cut -section-view-01

Threaded Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Sculptures & Infrastructure)

Threaded Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Sculptures & Infrastructure)

check_circle Threaded shaft fits through 15–40 mm mounting holes

check_circle Threaded shaft fits through 15–40 mm mounting holes

check_circle Fits 24 mm deep impact socket wrench

check_circle Highest Peak pull-out tested harder ground: 1000 kg*

*Important: These values represent the absolute...

* These values represent the absolute peak readings recorded during our in‑house tests. For an accurate assessment, we recommend performing your own site‑specific tests and applying an appropriate safety margin. Results will vary depending on soil type, installation method, and conditions.

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 (4 Reviews)

check_circle Our longest threaded anchor—built for maximum grip in deeper or sandy ground

check_circle Installs into pilot holes where normal GroundGrabbas can’t pass through

check_circle Perfect for mounting plates with 15–40mm holes that won’t accept flighted shafts

check_circle Used where standard hex-head GroundGrabbas won’t suit the application

check_circle Requires a 24mm deep impact socket (not included) for deployment

check_circle Hot-dip galvanised to withstand long-term outdoor exposure

check_circle Rated best of the range for sand-based or high-stress applications

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Threaded Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Sculptures & Infrastructure)

Threaded Ground Anchor Pack – 2 x 900mm GroundGrabba Pro II (Sculptures & Infrastructure)

$179.99
$179.99
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More Information

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What you Get

2x Commercial GroundGrabba Pro II - Threaded 900mm 

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How They Work

How They Work

Our engineered ground anchor flights (spirals) twist deep into the ground, creating a tree root–like hold. Once secure, you simply bolt down your base plate or item.

Our industrial-grade commercial threaded hex-less GroundGrabbas are designed so that, once driven into the ground, a portion of the threaded shaft remains above the surface—ready to fasten using the included washer and two locknuts.

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Set Up  

How To Deploy

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Specifications

GR14ULT 900mm  

  • Length 900mm 
  • Shaft thickness 15mm
  • Made of 1018 Carbon Steel
  • Galvanised for anti-corrosion
  • Weight 1.6kg 
  • Flights (spirals) 12.5mm  wide + - 0.5mm, 3mm thick
  • Diameter flights 38.5mm + - 0.5mm
  • Can screw through 30mm hole up to 8mm  thick
  • Fully welded flights
  • Nut - Socket size 24mm 
  • Weight: 1.62kg
    Dimensions: 90 × 4.5 × 4 cm 
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Grabbing Power

Hold Down Capacity 

Our GroundGrabba ground anchors will anchor down up to 7X that of a similar sized hammer in spike stake!

See the complete test chart here

GroundGrabba Commercial L (GR14UL)

Still not sure which GroundGrabba to use? Contact us 1300988655 or use this form.

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Recommendations

Recommended Tools to hire or own to help with installation: 

NB. These models were available at the time of writing.

**You will need a 24mm deep impact socket and set of spanners (for locking the two supplied nuts into themselves)**

For driving these into the ground, we recommend a high-torque impact wrench. Consider models like:

For driving these into the ground, we recommend a high-torque impact wrench. Consider models like:

  • Makita 40v TW001GZ-40v Brushless 3/4" Impact Wrench.
  • Milwaukee M18 FUEL 2867-20
  • Use a masonry drill at least the same length as the GR14 you choose for pilot holes in harder ground.

Important Note:

GroundGrabba Commercial range is designed for heavy-duty use with a tradie quality heavy-duty impact wrench.

Please note that these are not toys. Ensure you have a powerful drill, especially for hard ground conditions.

Uses & Benefits

Why Choose the 900mm Threaded Version?

  • Threaded for Narrow Mounts – Designed to pass through mounting holes as small as 15mm, where standard GroundGrabbas with wide hex heads and 40mm flights won't fit
  • Flighted Shaft – Yes, this model still has flights for grip—but they won’t pass through steel base plates unless the hole is 40mm+ or 30mm if the plate is under 8mm thick
  • Maximum Depth – At 900mm long, it’s built to anchor deep into soft, loose, or shifting ground where shallow threads fail
  • Industrial-Grade Strength – Hot-dip galvanised GR14 steel handles field wear, torque stress, and repeated installs
  • Reusable – Installs and removes easily for temporary setups or gear that moves from site to site

Tip: If your base plate is thin (e.g., 3–5mm), you might be able to use a regular GroundGrabba through a ~30mm hole—but it’s not recommended, as the 40mm flights may still bind or jam. That’s where the threaded version really shines.

Which GroundGrabba Is Right for You?

Model Length Socket Size Flights/Threaded? Use Case Summary
Commercial Pro 450mm 1" AF Flights Small sheds, ground mats, event gear
Commercial Pro I 600mm 1" AF Flights Sheds, fencing, site gear
Commercial Pro II 900mm 1" AF Flights Larger sheds, containers, high-wind sites
Threaded 450mm 450mm 24mm (nut) Flights + Threaded Top Shaft Signage, art, base plates
Threaded 600mm 600mm 24mm (nut) Flights + Threaded Top Shaft Sculptures, modular structures
Threaded 900mm 900mm 24mm (nut) Flights + Threaded Top Shaft Remote gear, sandy terrain, soft soil

Note: Always assess local soil conditions and loads; avoid rock/bedrock or impenetrable ground.

Product Details & FAQs

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What’s included in this kit?

The pack includes:

2 × GroundGrabba Threaded Anchors (450mm)
2 or 4 × Matching nuts
2 × Matching washers

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Ground Type

- Best for: soft/loose sand, clay, loam, and softer soils needing maximum embedment
- Not ideal: rock/bedrock or impenetrable ground
- Notes: strongest GR14 choice with maximum depth; suitability depends on load

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Tools Needed

Threaded GroundGrabbas must be installed with a 24mm deep impact socket and a high-torque impact wrench.
Do not attempt to use a standard drill or smaller socket, and avoid overtightening the nut once in place.

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Hold Strength

900mm GR14 Commercial and Threaded GroundGrabbas are the flagship anchors, delivering maximum holding power.
They perform exceptionally in soft soils and beach sand, making them the strongest choice for high-load and demanding commercial applications.
Not suitable for ground where penetration is impossible.

For detailed pull-out results and technical information, see our Grabbing Power section.

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Can you deliver to my address if I’m not in a metro area?

Yes. We ship Australia-wide. Regional and remote deliveries may take longer, and Star Track is our recommended courier for reliability outside metro areas. All orders are shipped with ATL (Authority to Leave) unless a signature is specifically requested at checkout.

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When will my order arrive?

We dispatch from Tweed Heads, NSW several times a week. Metro areas are typically 1–3 business days depending on proximity to Brisbane/Eastern Seaboard; regional and remote deliveries may take longer. We recommend Star Track for reliability in regional and remote areas. Courier options and ETAs appear at checkout.

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What warranty is included?

All steel GroundGrabba products come with a Lifetime Replacement Warranty against breakage in normal use. Accessories like bags, drill bits, and carabiners include a 12-month manufacturer’s warranty.

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What is your return policy?

We back every purchase with a 100% risk-free 12-month return policy. If you’re not satisfied, you can return your GroundGrabba products within 12 months for a full refund or replacement (conditions apply).

From the founder:

Hi, I’m David Levine, inventor of GroundGrabba. In 2017, Susu and I set out to create purpose-built ground anchors. Today, our range secures everything from tents to tiny homes. We back our steel anchors with a Lifetime Replacement Warranty* and a 100% RISK-FREE 12-month return policy. Whatever you need to anchor, we’ll keep you grounded.

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