300mm 300N – Patio Storage Box Gas Struts (Pair) - 10mm Ball Socket Ends with 2x L + 2x Flat Brackets
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Force Rating: 300N per strut (600N total support)
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Extended Length: 300mm
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End Fitting: 10mm Ball Socket (M6 Threaded Ball Stud)
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Ball Diameter: 10mm Snap-On Type
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Quantity: Supplied as a matched pair (2 gas struts)
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Bracket Kit: 2x L Brackets + 2x Flat Mounting Brackets Included
Suitable Applications
Engineered for:
- Patio storage boxes
- Garden cushion chests
- Outdoor deck boxes
- Timber storage benches
- Heavy-duty lid applications
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Recommended Lid Depth (hinge to front edge): 400–600mm
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Recommended Lid Weight (lid only): approx. 30–54kg (when using both struts)
Recommended Lid Weight & Installation Guidance
Force Output: 300N per strut (600N per pair)
Designed to assist lids weighing approximately 30–54kg when mounted correctly. Actual lifting performance depends on hinge placement and installation geometry.
Recommended Mounting Setup:
- Install one strut on each side of the lid
- Fix the upper bracket approx. 20–30% down from the hinge
- Mount lower bracket approx. 90–140mm below the top inner frame edge
- Ensure slight compression when the lid is fully closed to maintain preload tension
⚠ If lid weight exceeds 54kg, consider a higher force rating option.
⚠ For lids under 30kg, the struts may feel overly strong.
🔧 Mounting Bracket Type – 2x L + 2x Flat Bracket Kit
This kit includes 2x heavy-duty L brackets (90° angle brackets) for the box side and 2x flat brackets for the lid side.
Recommended for:
- Standard patio storage boxes
- Reinforced wooden chests with flat lids
- MDF or panel-style lid constructions
- Storage boxes with limited internal clearance
- Most domestic deck box installations requiring stronger lift support
The L brackets provide correct mounting offset on the box wall, while the flat brackets ensure a lower-profile and more natural pivot position on the lid.
⚠️ For thick-framed lids or installations requiring additional pivot height, a full 4x L bracket kit may be more suitable.
💡 Not Sure Which to Choose?
If your box has a thick-framed lid or requires extra offset → choose 4x L Brackets.
If your lid is flat and standard construction → choose 2x L + 2x Flat Combination.
Secure 10mm Ball Socket System
Each strut features a 10mm snap-on ball socket end designed to connect securely to the included M6 threaded ball studs.
- Allows smooth pivot movement
- Reduces stress on fixings
- Improves long-term durability
- Maintains stable lifting performance under heavier loads
Smooth & Controlled Lid Assistance
With a combined 600N lifting support, this strut pair provides powerful assisted opening and controlled closing, helping reduce sudden lid drops and improving user safety.
Key Features
- ✓ 10mm snap-fit ball socket connection
- ✓ 2x L + 2x Flat bracket mounting system
- ✓ Corrosion-resistant finish (outdoor suitable)
- ✓ Balanced lifting support (pair supplied)
- ✓ Designed specifically for patio storage box lids
- ✓ Reliable performance in garden environments
For optimal results, confirm lid dimensions, weight and mounting position before installation.
🛡️ AUTORCE Customer Assurance
- ✓ Quality-inspected components
- ✓ 30-Day Returns (unused condition)
- ✓ Fast UK Dispatch
- ✓ Secure Checkout
- ✓ UK-Based Customer Support
Order today and restore safe, smooth lid operation to your patio storage box.
