Cargo Box Mounting Hardware – Parts For Securing Your Cargo

9 June 2024 | General

Cargo box mounting hardware is a vital accessory for outdoor enthusiasts, providing extra storage space for road trips, camping, skiing, and more. The key to a secure and effective cargo- or roof box installation lies in the choice of mounting equipment.

This article explores the world of cargo equipment, delving into the types, features, and considerations that make these essential components.

4 types of cargo box mounting hardware kits

Cargo box mounting hardware kits typically come in several types, each designed to meet specific needs. These kits include a variety of small components and parts essential for securing the roof box or cargo to your vehicle’s roof rack. The main types of kits and their components are as follows:

1. Replacement kits

  • Components
    Larger and smaller plates, U-bolts, wingnuts, and vinyl stickers.
  • Purpose
    To replace lost or damaged hardware, ensuring that the cargo box remains securely attached to the roof rack.A typical replacement hardware kit might include four larger plates, four smaller plates, four U-bolts with threaded ends, eight wingnuts, and a sheet of vinyl stickers to seal unused holes.

2. Quick mount kits

  • Components
    Quick-release brackets, protective pads, tie-down brackets, carriage bolts.
  • Purpose
    To facilitate easy installation and removal of the cargo box, ideal for users who frequently attach and detach their boxes.

A quick mount kit may include quick on/off mounting bar protector pads, quick-release brackets, and tie-down brackets.

3. Universal mounting kits

  • Components
    Adjustable clamps, bolts, nuts, washers, and plates.
  • Purpose
    To provide a flexible solution that can fit a variety of cargo boxes and roof rack systems.

A universal mounting kit typically includes adjustable clamps and a set of bolts and nuts designed to fit multiple box models.

4. Security kits

  • Components
    Locks, anti-theft bolts, security keys.
  • Purpose
    To enhance the security of the cargo box by preventing unauthorised removal.

A security kit might include integrated locks and anti-theft bolts to ensure that the box and its contents are safe from theft.

4 types of cargo box mounting hardware kits

Why you might need to buy new cargo box mounting hardware

Purchasing new cargo box mounting hardware can become necessary for various reasons, each ensuring the safety, security, and functionality of your cargo setup. Here’s a detailed and insightful look into why you might need to invest in new hardware:

Wear and tear over time
Over time, exposure to the elements—such as rain, snow, and UV radiation—can cause the hardware materials to degrade. Rust and corrosion, especially on metal parts like bolts and U-bolts, can weaken the integrity of the mounting hardware.

High-grade plastics used in some mounting kits can become brittle due to prolonged exposure to extreme temperatures and UV rays, increasing the risk of breakage.

Loss or damage
Small parts such as wingnuts, washers, and screws can be easily misplaced during installation or when removing the cargo box for storage.

Hardware can be damaged during installation, through improper handling, or due to impacts while driving. Bent brackets or stripped threads on bolts are common issues.

Upgrading for better security
Newer mounting kits often come with improved security features such as integrated locks and anti-theft bolts. Upgrading to these can help prevent theft and ensure that your roof box remains securely attached.

Older hardware might lack the robust locking mechanisms found in newer kits, making them easier targets for thieves.

Compatibility with new vehicles or roof racks
If you’ve purchased a new vehicle or upgraded your roof rack, the old mounting hardware might not be compatible. New roof rack designs often require specific hardware for proper fitting.

Upgrading or changing your cargo box might necessitate new hardware that fits the specifications of the new model.

Key highlights to seek for in mounting hardware kits

Material quality
Select hardware made from durable materials like stainless steel or high-grade plastics to resist changing weather conditions and heavy loads.

Choose mounting hardware with adjustable features to accommodate different roof rack configurations and cargo box sizes.

A versatile mounting system is beneficial if you frequently switch between different roof boxes or have multiple vehicles with varying roof rack systems.

Locking components
Security is fundamental. Look for hardware with integrated locks to prevent theft of both the box and its contents.

Weight capacity
Ensure that the mounting hardware can support the weight of your roof box and its contents. Exceeding weight limits can compromise safety.

Each box has a specified weight limit, and your mounting hardware should match or exceed this capacity.

Installation tips for your cargo- or roof box

Installing a roof box shouldn’t take too much time or effort. To make the process easier, choose equipment that is user-friendly and comes with clear installation instructions. Ideally, the hardware should be easy to install without requiring specialised tools. Here are some tips to help you:

  1. Follow the manufacturer’s guidelines
    Always adhere to the installation instructions provided by the manufacturer to ensure proper setup and safety.
  2. Double-check tightness
    After installation, double-check the tightness of all bolts and clamps to ensure everything is secure.
  3. Consider additional security measures
    For added security, use extra measures such as cable locks to further secure your roof box.

Considerations for different kits

  1. Compatibility check
    Ensure that the cargo box mounting hardware is compatible with both your vehicle’s roof rack system and the specifications of the box.
  2. Proper alignment
    When installing, align the mounting hardware carefully to match the designated points on both the cargo box and the roof rack.
  3. Secure fastening
    Fully tighten all bolts, clamps, or latches according to the manufacturer’s specifications. Regularly check for tightness during long trips to prevent any loosening due to vibrations.
  4. Weight distribution
    Distribute the weight evenly inside the roof box mounting hardware to maintain stability and prevent any imbalance.
  5. Weatherproofing
    Apply weather-resistant coatings or lubricants to the mounting equipment to protect against corrosion and rust.
  6. Security measures
    Use integrated locks or additional security features to deter theft.
  7. Regular inspections
    Periodically inspect the mounting hardware for signs of wear, corrosion, or any damage. Replace any worn-out components immediately.

Summary – Cargo box mounting hardware

Investing in quality cargo box mounting hardware is vital for a secure and enjoyable travel experience.

By knowing the different types, key features, and installation tips, you can confidently select the appropriate mounting hardware for your specific needs, and ensure a safe and hassle-free journey.

The importance of these modest components becomes clear as they provide the seamless integration of roof boxes onto roof racks, elevating the travel experience for outdoor enthusiasts.

The flexibility and reliability of the mounting hardware become the cornerstones of successful travel with our cargo steadfastly secured.

Read more about storing your roof box at Automobilly, visit their website here.


  • Danielle Stone

    She has been writing professionally for 8 years, with articles published in various print and online publications. She is an avid researcher and strives to bring her readers the most up-to-date information and insights on the topics she covers. Danielle is also an expert on home renovation, interior design and construction, and she loves helping homeowners turn their dreams into realities. When she’s not writing or editing, Danielle enjoys spending time with her family, gardening and exploring nature.

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