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A Solgrid (often called Solgrip) Clamp 40×40 is a heavy-duty mounting clamp used in solar photovoltaic (PV) mounting systems to secure solar panels to a support structure—specifically those with a 40×40 mm mounting profile or pipe. Like end or mid clamps, it grips the panel frame and holds it firmly in place on the roof or ground-mount rail.

This clamp variant is typically sized to fit 40×40 mm module mounting structures (MMS) commonly used in solar installations and is engineered to withstand environmental loads like wind and vibration.

A Mid Clamp (25 mm) is a mounting hardware component used in solar panel installation systems to secure two adjacent solar modules to the mounting rail. It’s placed between the frames of two panels at their mid-section to hold them firmly in place on the support structure.

The “25 mm” typically refers to the height or width of the clamp, meaning it’s sized to match mounting rails or solar panel frame profiles that accept that dimension.