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Core fasteners that directly fix photovoltaic modules in the PV bracket system, clamping module frames and connecting to C-shaped steel or square tubes without drilling.
Photovoltaic blocks are the core fasteners that directly fix photovoltaic modules in the photovoltaic bracket system. By cooperating with plastic wing nuts and bolts, they clamp the frames of photovoltaic modules and firmly connect the modules to the photovoltaic brackets.
Design note: The blocks clamp module frames and connect to C-shaped steel or square tubes without the need to drill holes in the modules, making them non-destructive installation accessories.
MODULE CLAMPING
Clamps the frames of photovoltaic modules and fixes them directly to the bracket system.
NON-DESTRUCTIVE
Works with plastic wing nuts and bolts; no drilling holes in the modules.
Aluminum alloy pressing blocks are made of 6063-T5 material: lightweight, high-strength, and with good corrosion resistance, suitable for outdoor environments and a mainstream choice.
Stainless steel pressing blocks are made of 304 / 316 material, resistant to salt spray and corrosion, suitable for coastal, high-humidity, and highly corrosive areas.
✓ Non-destructive
No drilling in PV modules.
✓ Lightweight
Al 6063-T5 pressing block.
✓ Corrosion resistant
304 / 316 stainless option.
✓ Fast installation
Works with plastic wing nuts.
01 / PV MODULE FIXING
Direct fixing of photovoltaic module frames to brackets.
02 / C-SHAPED STEEL BRACKETS
Clamping connection on C-shaped steel rails.
03 / SQUARE TUBE BRACKETS
Firm connection to square tube mounting structures.
04 / ROOFTOP SOLAR
Outdoor rooftop PV installation with aluminum blocks.
05 / COASTAL PROJECTS
Stainless 304 / 316 for salt spray environments.
06 / GROUND MOUNTING
Reliable module fixing in ground-mounted systems.
| Material Type | Characteristics | Typical Finish |
|---|---|---|
| Aluminum Alloy 6063-T5 | Lightweight, high-strength, good corrosion resistance; mainstream outdoor choice. | Plain / anodized |
| Stainless Steel 304 / 316 | Salt spray and corrosion resistant for coastal and high-humidity areas. | Plain / passivated |
| Accessories | Plastic wing nuts, bolts, and washers supplied with the set. | Per specification |
Plain
Standard plain finish for aluminum and stainless blocks.
Anodized Aluminum
Protective anodizing option for aluminum blocks on request.
Passivated Stainless
Passivated stainless option for improved corrosion resistance.
Custom Coating
Special finishes available on request.
Module Frame Clamp
Pressing block profile designed to clamp common PV module frames.
Plastic Wing Nut
Works with plastic wing nuts and bolts for fast locking.
Bracket Compatibility
Connects to C-shaped steel and square tube brackets.
Non-Destructive Fixing
No drilling holes in photovoltaic modules.
Installation note: Blocks clamp the module frame and lock with plastic wing nuts and bolts, providing a quick, non-destructive connection to the bracket.
Al 6063-T5Stainless 304 / 316Plain FinishC-Channel / Square TubeNon-DestructiveSets
| Configuration | Description | Note |
|---|---|---|
| Standard Pressure Block | Common profile for standard PV module frames. | Al 6063-T5 / 304-316 |
| Custom Pressure Block | Profile machined per module frame and bracket drawing. | Per drawing |
| Complete Set | Blocks with plastic wing nuts, bolts and washers. | Sets |
Please provide your module frame profile and bracket drawing for exact sizing and set configuration.
Kraft boxes
With inner partitions, thread protection and full labeling.
Bulk cartons
Five-layer corrugated, waterproof sealed and strapped.
Pallets / wooden cases
ISPM-15 heat treatment certification available.
Resealable polybags
For samples and low-volume orders.
VCI anti-rust packaging
For long-distance overseas shipment.
Custom OEM packaging
Labels, barcodes and packaging; MOQ may apply.
01 Raw Material Inspection
02 Cutting
03 Extrusion / Pressing
04 Stamping (Stainless)
05 Machining
06 Surface Treatment
07 Dimensional Inspection
08 Fit Test
09 Clamp Test
10 Set Assembly
11 Packaging & Labeling
12 Outgoing QC
Dimensional inspection
Block profile, width, height and hole positions per drawing.
Clamp fit test
Block fit with module frame and bracket verified by sample test.
Material check
Al 6063-T5 or 304 / 316 grade verified per specification.
Surface check
Plain or custom finish quality inspected.
Set completeness
Blocks, wing nuts, bolts and washers verified per packing list.
Final verification
100% visual inspection, packaging check and traceability.
1. What are photovoltaic blocks used for?
They directly fix photovoltaic module frames to the PV bracket system.
2. Do they require drilling?
No. They are non-destructive installation accessories and do not require drilling holes in the modules.
3. What materials are available?
Aluminum alloy 6063-T5 or stainless steel 304 / 316.
4. How do they work?
They clamp the module frame and cooperate with plastic wing nuts and bolts to connect to C-shaped steel or square tubes.
5. Which material suits coastal areas?
Stainless steel 304 / 316 is resistant to salt spray and corrosion.
6. How are they supplied?
As complete sets with blocks, plastic wing nuts, bolts, and washers.
