The GSE M4x12 Screw (ART106541) is a fixing bolt used in the GSE Ground System Evolution, the manufacturer's ballasted ground-mounting structure for photovoltaic modules. This M4 bolt is used together with the matching ART106547 M4 Nut to lock the incline-adjustment squares in place at the required tilt angle on the system's front and back corners.
Supplied as a genuine GSE component, this screw ensures the angular position of each square is securely locked once the desired module incline has been set, working alongside the system's M8 hardware which carries the main structural load. Correct fitting and torque of this fixing is an essential step in achieving a safe, compliant Ground System Evolution installation.
M4x12
Fixing Size
ART106541
GSE Part Number
ART106547
Matching Nut
7
Incline Positions Set
GSE
Ground System Evolution
2
Per Incline Assembly
Please Note
This M4 fixing works alongside the system's M8 bolts, which carry the main structural load at each incline square and must be tightened to a minimum torque of 16 Nm. Always follow the step-by-step sequence and torque settings in GSE's official Ground System Evolution installation manual, and use an adjustable torque driver as specified by the manufacturer.
Genuine GSE Component
Supplied as an authentic GSE Ground System Evolution part, referenced ART106541 in the manufacturer's official installation manual.
Incline Locking Function
Used to lock the angular position of the incline-adjustment squares once the desired module tilt angle has been selected.
Paired With M4 Nut
Designed to be used together with the matching ART106547 M4 Nut to secure the fixing.
Used at Front and Back Corners
Fitted at both the front and back corner squares of the ballast box assembly during incline adjustment.
Supports Multiple Incline Angles
Enables the system's seven adjustable incline positions (5° to 40°) to be locked securely once set.
Compact Fixing Size
A small M4 x 12mm bolt sized specifically for the drill holes in the GSE square and corner components.
Good to Know
This screw is designed exclusively for the GSE Ground System Evolution ballasted ground-mounting structure. It is not part of the GSE In-Roof (roof-integrated) mounting range, which uses a separate set of fixings and clamps.
General
Brand
GSE Intégration
GSE Part Number
ART106541
Product Type
Fixing Screw / Bolt
Thread Size
M4
Length
12 mm
Mounting System
GSE Ground System Evolution
Function Within the System
Used With
ART106547 – M4 Nut
Application Point
Front and back corner incline-adjustment squares
Purpose
Locks the angular position of the square once the desired incline is set
Related Fixing
ART106569 – M8x20 Screw (used with ART100743 M8 Nut) for the main structural connection at the same joint
Frequently Asked Questions
What is the GSE M4x12 Screw (ART106541) used for?
It is used to lock the angular position of the incline-adjustment squares on the GSE Ground System Evolution, once the module's tilt angle has been set at the front and back corners.
What nut does this screw need?
It is designed to be used with the matching ART106547 M4 Nut.
Is this the same bolt used to secure the main ballast box structure?
No. The main structural connections in the ballast box and squares use a separate M8x20 screw (ART106569) with an M8 nut (ART100743), tightened to a minimum torque of 16 Nm. The M4x12 screw specifically locks the incline angle of the square.
Which GSE system is this screw compatible with?
This part is specific to the GSE Ground System Evolution ballasted ground-mounting range. It is not used in GSE's In-Roof (roof-integrated) mounting system.
How many of these screws do I need per installation?
Two incline squares are fitted per ballast box (one on each side), each locked in place with one M4x12 screw and nut, so the quantity required depends on the number of ballast boxes in your project. Refer to GSE's CONNECTOR configurator or installation manual for exact quantities on your project.
Secure your solar panel tilt angle with confidence using the GSE Ground Mount EVOLUTION M4 Nut. This essential mounting accessory pairs with the M4 screw to firmly fix the angle tilt of the square on the GSE Ground Mount EVOLUTION ballasted ground mounting system, ensuring your photovoltaic panels stay precisely positioned at your chosen inclination for optimal energy production.
Designed for homeowners and trade professionals installing ground mounted solar PV systems, this galvanised steel nut delivers lasting durability and corrosion resistance in UK weather conditions. As part of the modular EVOLUTION system, it enables quick, tool efficient assembly without requiring specialised certification.
Why Buy This Product
Reliable Angle Fixing: Locks the tilt adjustment square securely in place, preventing unwanted movement that could reduce solar efficiency
Corrosion Resistant Construction: Made from galvanised steel to withstand outdoor exposure for the system's 20 year lifespan
Perfect System Compatibility: Specifically engineered for the GSE Ground Mount EVOLUTION box - ensures seamless integration with your existing mounting kit
Quick Installation: Simplifies assembly as part of the EVOLUTION system's modular design - approximately 4 minutes per kit
No Ground Penetration Required: Works with the ballasted system that needs no concrete, drilling, or permanent ground disturbance
Professional Grade Quality: Manufactured by GSE Integration, a trusted French specialist in solar mounting systems since 2008
Suitable For
Homeowners installing ground mounted solar PV arrays on flat garden or field space.
Trade professionals and solar installers completing residential or commercial ground mount projects
DIY enthusiasts assembling GSE Ground Mount EVOLUTION ballasted systems.
Projects requiring adjustable tilt angles between 5° and 40° for latitude specific optimisation.
Portrait oriented solar panels under 2.40m length and 1.35m width.
environmentally sensitive sites where soil preservation is required.
Key Features
Galvanised Steel Build: 10μm thick galvanisation provides excellent rust protection for long term outdoor performance
Modular System Design: Part of GSE's industrialised EVOLUTION range with pre cut components - no on-site cutting needed
Wind Resistant Performance: Contributes to system stability in wind zones up to 31 m/s when used with appropriate ballast
Lightweight Yet Strong: Minimal added weight while maintaining structural integrity for your solar array
20 Year Warranty Coverage: Covered under the GSE Ground Mount EVOLUTION system warranty.
Recyclable Material: Steel construction ensures full recyclability at end of system life
Technical Specifications
Specification
Detail
Product Type
M4 Nut (Angle Fixing Nut)
Part Code / SKU
ART106548
Manufacturer
GSE Integration
Material
Galvanised Steel (10μm thick)
Colour
Galvanised (Silver)
Compatible System
GSE Ground Mount EVOLUTION Box
Pairs With
M4 Screw (for tilt-angle square fixing)
Function
Secures angle tilt of adjustment square
Mounting Type
Ground Mount (Ballasted System)
Panel Orientation
Portrait
Adjustable Tilt Angles
5°, 12°, 18°, 25°, 30°, 35°, 40° (standard 40°)
Maximum Panel Size
< 2.40m length × < 1.35m width
Wind Zone Rating
Up to 31 m/s (with sufficient ballast)
Terrain Categories
II, IIIa, IIIb, IV (open countryside to urban)
System Warranty
20 years (per installation recommendations)
Recyclable
Yes
Manufactured In
France
Exclusions
Not suitable for terraces, roofing, mounds, coastal areas (Category 0), or altitude above 900m
Installation Notes
The GSE Ground Mount EVOLUTION system requires installation on level ground only. Assemble the ballast box with side walls, base, and corner pieces, then attach the panel support rail. Use the M4 nut with the M4 screw to lock your chosen tilt angle on the adjustment square. Fill the ballast box with minimum 100kg of sand, concrete, or gravel (capacity up to 400kg sand / 370kg concrete / 335kg gravel) for wind resistance.
Always follow GSE Integration's installation recommendations to maintain warranty coverage. The system is tested to Euro code wind standards and proven resistant to winds exceeding 150 km/h when correctly ballasted.
