Description
Key Benefits
- Universal clamp serves as both end and mid clamp, reducing inventory needs.
- One-handed, one-tool installation speeds up solar panel mounting.
- Compatible with framed solar modules from 30 mm to 45 mm thickness.
- Constructed from durable 6000 series aluminum and 304 stainless steel.
- Maintains a clean 1/2-inch inter-module gap for neat array appearance.
- UL 2703 listed for integrated electrical bonding with K2 rail systems.
- Compatible with K2 CrossRail 44-X, 48-X, 48-XL, and 80 rail systems.
Best Uses
Tech Specs
| Spec | Value |
|---|---|
| Manufacturer | K2 Systems |
| Part Number | 4000135-US |
| Product Name | Cross Clamp Set End-Mid Clamp |
| Product Type | Module Clamp |
| Clamp Function | End Clamp & Mid Clamp |
| Compatible Module Frames | 30 mm – 45 mm |
| Material | 6000 Series Aluminum & 304 Stainless Steel |
| Finish | Mill Finish |
| Installation Method | One-Handed / One-Tool Installation |
| Compatibility | CrossRail 44-X, 48-X, 48-XL, 80 |
| Inter-Module Gap | 1/2 in |
| Certifications | UL 2703 Listed |
| Florida Product Approval | FL#46869 |
| Quantity | 50 Pieces |
Warranty
Important: Warranty terms may vary based on installation conditions and system configuration. See manufacturer documentation for full details.
More Info
The K2 Systems Cross Clamp Set 4000135-US is engineered for secure and efficient solar panel attachment within K2 CrossRail mounting systems.
Its dual functionality as both an end clamp and mid clamp reduces the number of SKUs installers need to manage, simplifying inventory and logistics.
The clamp supports framed solar modules with thicknesses ranging from 30 mm to 45 mm, providing flexibility across various panel designs.
Constructed from lightweight yet strong 6000 series aluminum combined with corrosion-resistant 304 stainless steel hardware, the clamp ensures long-term durability in outdoor environments.
Installation is streamlined with a redesigned geometry allowing one-handed, one-tool assembly, reducing installation time and labor costs.
The clamp maintains a clean 1/2-inch gap between modules, contributing to a professional and aesthetically pleasing solar array.
UL 2703 listing confirms the clamp’s integrated electrical bonding capability when used with compatible K2 rail systems, enhancing system safety and compliance.
Compatibility with K2 CrossRail 44-X, 48-X, 48-XL, and 80 rail systems ensures versatility across multiple mounting configurations.
K2 Systems is a global leader in solar mounting technology, known for innovative, durable, and installer-friendly solutions for residential and commercial photovoltaic systems.





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