Trusted by Builders and Subbies. +50,000 products shipped to sites Australia wide.
Trusted by Builders and Subbies. +50,000 products shipped to sites Australia wide.
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Galvanised True Bolt 110mm x 20mm – Heavy-Duty Fastener

Delivery in 3 - 5 days. MAX 5 day delivery guarantee! Metro BNE, SYD, MEL.

ASNZ 2890.1:2004 compliant for car parks.

60 day returns. No re-stocking fees.

100% money back guarantee. Not satisfied? Full refund, no questions asked.

$150 inc GST minimum order

Buy now!

$7.00 inc GST

Notify me when back in stock

Galvanised True Bolts – 110mm x 20mm

Dependable anchoring for guardrail systems – the Galvanised True Bolt is a heavy-duty fastening solution used to securely fix surface mount guardrail posts to concrete substrates. Designed to deliver exceptional holding strength, this bolt is ideal for high-impact environments like car parks, warehouses, and roadside installations.

As part of the trusted Car Parks and Roads Guardrail System, this fastener supports long-term safety and performance. The system is engineered with driver safety and vehicle containment in mind, featuring hot-dip galvanised protection for Australia's demanding outdoor conditions.


Key Features:


  • Engineered for mounting guardrail surface posts to concrete floors
  • Robust 20mm diameter for increased strength
  • Hot-dip galvanised finish for corrosion resistance
  • Compatible with Car Parks and Roads W-beam guardrail system
  • Complies with AS 4680:2006 galvanising standards


Applications:


  • Surface mounting of guardrail posts on concrete substrates
  • Car park barrier installations
  • Warehouse safety barriers
  • Industrial and roadside safety systems


Why Choose Galvanised True Bolts for Car Parks and Roads?


  • Purpose-built for guardrail installation
  • Superior durability in demanding conditions
  • Corrosion-resistant coating ensures long service life
  • Backed by Car Parks and Roads quality assurance


Frequently Asked Questions (FAQ)

Are these bolts suitable for use in outdoor environments?
Yes, the bolts are hot-dip galvanised to AS 4680:2006, making them ideal for outdoor use and resistant to corrosion.


How many bolts are required per guardrail post?
Typically, 4 true bolts are used per baseplate for secure mounting. However, confirm based on your guardrail configuration.


Can these bolts be reused?
We recommend using new bolts for each installation to ensure maximum integrity and performance.


Do I need any special tools to install them?
A standard impact drill and wrench suited for M20 bolts will suffice. Chemset installation may require additional materials.


Contact us today, and we’ll assist you in building the right safety solution for your site.

Who we've worked with

Description

Galvanised True Bolts – 110mm x 20mm

Dependable anchoring for guardrail systems – the Galvanised True Bolt is a heavy-duty fastening solution used to securely fix surface mount guardrail posts to concrete substrates. Designed to deliver exceptional holding strength, this bolt is ideal for high-impact environments like car parks, warehouses, and roadside installations.

As part of the trusted Car Parks and Roads Guardrail System, this fastener supports long-term safety and performance. The system is engineered with driver safety and vehicle containment in mind, featuring hot-dip galvanised protection for Australia's demanding outdoor conditions.


Key Features:


  • Engineered for mounting guardrail surface posts to concrete floors
  • Robust 20mm diameter for increased strength
  • Hot-dip galvanised finish for corrosion resistance
  • Compatible with Car Parks and Roads W-beam guardrail system
  • Complies with AS 4680:2006 galvanising standards


Applications:


  • Surface mounting of guardrail posts on concrete substrates
  • Car park barrier installations
  • Warehouse safety barriers
  • Industrial and roadside safety systems


Why Choose Galvanised True Bolts for Car Parks and Roads?


  • Purpose-built for guardrail installation
  • Superior durability in demanding conditions
  • Corrosion-resistant coating ensures long service life
  • Backed by Car Parks and Roads quality assurance


Frequently Asked Questions (FAQ)

Are these bolts suitable for use in outdoor environments?
Yes, the bolts are hot-dip galvanised to AS 4680:2006, making them ideal for outdoor use and resistant to corrosion.


How many bolts are required per guardrail post?
Typically, 4 true bolts are used per baseplate for secure mounting. However, confirm based on your guardrail configuration.


Can these bolts be reused?
We recommend using new bolts for each installation to ensure maximum integrity and performance.


Do I need any special tools to install them?
A standard impact drill and wrench suited for M20 bolts will suffice. Chemset installation may require additional materials.


Contact us today, and we’ll assist you in building the right safety solution for your site.

Shipping

Shipping Information

Domestic Shipping (Australia)

Due to the size and weight of most orders, shipping is automatically calculated at checkout. Below is a guide to our freight charges:

  • Order value $1 – $299: $69 shipping
  • Order value $300 – $599: $99 shipping
  • Order value $600 – $849: $139 shipping
  • Order value $850 – $1,099: $169 shipping
  • Order value $1,100 – $1,500: $199 shipping
  • Order value $1,501 – $2,499: $239 shipping
  • Order value $2,500 and above: $299 shipping

Please note: We operate a freight-only model. We do not offer customer pick-up from our warehouses. All orders are dispatched via courier or freight carrier to your site or depot. This ensures faster delivery times, tighter quality control, and minimal disruption to warehouse operations.

Order Confirmation

Once your order is placed, you’ll receive an order confirmation email. This confirms that your order has been received and your payment has been pre-authorised.

We will then verify stock availability. If an item is unavailable or on back-order, we’ll void the pre-authorisation and contact you to discuss alternative options.

If your item is in stock and available for immediate shipment (within 5 business days), we will finalise payment and prepare your order for dispatch.

Order Dispatch & Shipping Notifications

If your order is in stock, it will be shipped within 3 business days of order confirmation.

All orders are shipped via freight only — no pick-up is available. You’ll receive a shipping confirmation email with tracking details within 24 hours of dispatch.

If you haven’t received a shipping notification within 4 business days, please contact us at orders@carparksandroads.com.au.

International Orders

We do ship internationally, but please note:

  • Our products are built for the Australian market (240V electrical systems).
  • They may not meet overseas electrical safety certifications.

We can provide a shipping quote for international orders upon request. If you’re happy with the quote, we’ll send a secure payment link and process your order manually.

Damaged Deliveries

Please inspect your items immediately upon delivery.

  • If you notice damage on arrival, note it on the delivery docket or reject the shipment.
  • If you do accept a damaged delivery, take photos of the packaging and product immediately.

To lodge a damage claim, send photos to orders@carparksandroads.com.au and visit our Returns page to submit a claim online.

Why Buy From Us

With 18 years serving the construction industry, we know exactly what you're going through at the end of a job.

 

Here's why you should shop with us at Car Parks and Roads.

 

  • Product knowledge. We know what you need to finish the job and get certified.

 

  • On time deliveries. You'll get priority shipping Australia wide from our closest dispatch warehouse. Next day shipping for orders before 3pm.

 

  • 60 day easy returns. Not happy with your product, we'll take it back no questions asked.

 

  • Your satisfaction guaranteed. We handpick our products for compliance and quality. If there is ever something wrong, we'll fix it straight away.

We get it . . .

We've got 18 years experience

in the Construction Industry.

Buy online - fast and easy.

Or send us your plans for a project quote.

orders@carparksandroads.com.au

30 day accounts upon application.