450mm Threaded GR14 Anchor

50% END OF LINE SALE – Use code “threaded” at checkout (no further discounts apply).

The 450mm threaded GR14 is designed for firm ground and tight clearance holes or base plates where flighted anchors won’t fit. Install with a pilot hole and double-nut drive.
⚠️ Not designed for repeated use — thread damage from overtightening or reuse is not covered under warranty.
Best for permanent/semi-permanent applications only.

50% END OF LINE SALE Use code "threaded" at checkout - No further discounts apply.

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

50% OFF - END OF LINE- Threaded Ground Anchor Pack – 2 x 450mm GroundGrabba Pro (Compact Fixtures)

50% OFF - END OF LINE- Threaded Ground Anchor Pack – 2 x 450mm GroundGrabba Pro (Compact Fixtures)

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: 118 kg*

*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.

$73.99
$73.99 $147.99
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check_circle A compact solution for signs, mailboxes, art, and temporary fixtures

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 Backed by our lifetime replacement warranty for peace of mind

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$4.99
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50% OFF - END OF LINE- Threaded Ground Anchor Pack – 2 x 450mm GroundGrabba Pro (Compact Fixtures)

50% OFF - END OF LINE- Threaded Ground Anchor Pack – 2 x 450mm GroundGrabba Pro (Compact Fixtures)

$73.99
$73.99 $147.99
SAVE 50% Sold out
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More Information

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What you Get

2x Commercial GroundGrabba Pro - Threaded 450mm

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How They Work

How They Work

Our engineered ground anchor flights (spirals) wind their way into the ground and create a tree root–like hold. Then 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 surface—ready for you to attach a washer and secure it with the supplied locknuts (2 included).

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Set Up

How To Deploy

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Specifications

GR14UST 450mm 

  • Length 450mm
  • Shaft thickness 15mm
  • Made of 1018 Carbon Steel
  • Galvanised for anti-corrosion
  • Weight 1.2kg 
  • Flights (spirals) 12.5mm wide + - 0.5mm, 3mm 
  • Diameter flights 38.5mm + - 0.5mm
  • Can screw through 30mm hole up to 8mm thick
  • Fully welded flights
  • Nut - Socket size 24mm 
  • Weight: 0.9kg 
    Dimensions: 45 × 4.5 × 4 cm 
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Grabbing Power

Hold Down Capacity 

Please look at our tests below.  

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 (GR14US)

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

IMPORTANT***Please note that these figures are a guide only. 

The results are absolute peak readings and you should allow a decent safety margin.   

Ground types vary. Through the depth of one ground anchor the ground can be of different densities and affect outcomes.   

These all rely on correct deployment in dry conditions. 

Please also note that you will experience even greater ground holding as time goes by and the earth resettles undisturbed.

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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

Threaded Anchoring Made Easy—Even in Tight Spaces

GroundGrabba threaded anchor in ground illustration

Looking for a smarter way to anchor through tight mounting points—without using oversized augers or pouring messy concrete? The 450mm GroundGrabba Threaded Anchor is purpose-built for when traditional ground screws are too wide to fit your application. Whether you're installing signage, securing outdoor equipment, or anchoring sculptures, this heavy-duty threaded GR14 anchor gets the job done cleanly, securely, and efficiently.

How Does It Compare?

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 frames
Threaded 900mm 900mm 24mm (nut) Flights + Threaded Top Shaft Temporary structures, deep sand hold

What It’s Best At

This 450mm threaded GroundGrabba is engineered for pull-out resistance—not vertical load-bearing. That means it's ideal when your application needs to resist wind, vibration, lifting, or tipping—but not designed to support the entire weight of a structure.

It’s an ideal solution for:

  • Permanent or semi-permanent outdoor signage
  • Ground-mounted electrical boxes or switchboards
  • Lightweight sculptures and displays
  • Steel and timber brackets, base plates, or fencing fixtures
  • Grounded rigging systems and tethering points
  • Anchor points for test rigs, scientific installations, or shade systems
  • Equipment tie-downs in remote or rugged terrain

Built for Professionals Who Need Precision

Whether you're a contractor, engineer, event planner, or technician, this anchor was made with you in mind. It’s perfect for situations where standard GroundGrabba augers with large 40mm flights simply won't fit. Because it relies on threading into the earth after drilling, it delivers more accurate placement and is less invasive to the surrounding area—especially important in heritage or landscaped locations.

Performance You Can Count On

  • High-strength GR14 steel – Built with a 15mm shaft and hot-dip galvanised coating for maximum corrosion resistance.
  • Threaded design – Grips earth, clay, and compact soil reliably once driven into a pilot hole.
  • Easy install – No concrete. No curing. Just drill and drive.
  • Low-profile – Leaves a neat threaded shaft above ground for nut tightening.
  • Reusable – Designed to be removed and reused again and again on new sites.

Installation Tips

  • Use a pilot hole – Always pre-drill with an auger or masonry bit of appropriate depth and width. Anchor will not self-drive.
  • Socket tool required – A 24mm deep impact socket is essential for proper torque and depth control.
  • Leave thread exposed – Allow 25–30mm of shaft above ground for secure nut fastening. Don’t drive flush.
  • Don’t overtighten the top nut – Excessive torque can reduce hold strength by lifting the anchor up out of the ground.

Hook Washer 14—Your Secret Weapon

If your baseplate has a larger clearance hole (e.g. 40–45mm), the hex head of this anchor may slip through. To fix that, we recommend pairing it with our Hook Washer 14. It’s a wide, heavy-duty washer that creates a secure stop point for fastening through larger diameter mounting holes without compromising hold.

Specs at a Glance

  • Length: 450mm
  • Shaft diameter: 15mm
  • Material: Hot-dip galvanised GR14 steel
  • Head type: Threaded top for nut fastening
  • Tools required: 24mm deep impact socket (not included)

Who’s Using It?

This anchor has been trusted by professionals across multiple industries—from solar contractors securing inverter brackets, to artists anchoring outdoor installations, to event managers tethering gear in unpredictable weather. Its clean design, compact strength, and adaptability have made it a favourite in situations where standard augers simply don’t work.

Still Not Sure?

We're happy to help. Contact us with your project specs and we'll help confirm if this is the right anchor—or if another GroundGrabba model would better suit your conditions.

For tight fits, technical installs, or projects that can’t compromise on finish—this is the anchor that fits where others can’t.

Which GroundGrabba Is Right for You?

Model Length Socket Size Flights/Threaded? Use Case Summary
Junior 275mm 16mm hex (new series) Threaded Lighter-duty anchoring in firm to harder soils (not for sand); popular for most campers with smaller footprint needs
Pro 300/315mm 16mm hex (new) / 19mm (original) Flights / 25mm diameter General purpose for medium-to-firm soils; suitable for tents, gazebos, light gear
Up to 3× vertical pull-out hold over equivalent hammer-in stakes/tent pegs
Pro I 450/465mm 16mm hex (new) / 19mm (original) Flights / 35mm diameter Excellent for soft to medium soils; grass-topped sandy soils; step up from Pro for added depth/hold
Up to 7× vertical pull-out hold over equivalent hammer-in stakes/tent pegs
Pro II 600/615mm 16mm hex (new) / 19mm (original) Flights / 35mm diameter Best GR13 option for soft/loose sand; long reach for maximum camping-type loads
Up to 7× vertical pull-out hold over equivalent hammer-in stakes/tent pegs
Lite 400mm 19mm hex 3/4 length spiralled flights Light-duty in sand & soft to medium-to-firm soils; can work in grass-topped sand if used correctly; not for heavy loads or hard/rocky ground. Cordless drill use — not to be used with impact tools

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: firm to mixed soils (civil/site work, general tie-downs)
- Not ideal: very soft/loose sand, rock/bedrock or impenetrable ground
- Notes: choose 600mm or 900mm where soil is softer or loads are higher

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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

450mm GR14 Commercial and Threaded GroundGrabbas provide excellent anchoring strength in firm soils, clay, and compacted ground.
They hold significantly stronger than short rebar or star pickets.
Best suited for lighter tie-downs and medium-duty use.
For softer soils or higher wind loads, step up to the 600mm or 900mm GroundGrabba.

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.