solar panel mounting brackets have pre-drilled mounting holes on the and include nuts and screws. The connection between each solar module panel can be easily realized. Easy to install, saves time and labor costs solar panel center clip including mounting screws and Channel Squeeze Nuts. solar mounting center clamps , which has the advantages of resistance and durability, and are rust and weather , not easy to break, deform or bend for most home, RV and marine solar panel installations, you can install solar panels on flat and pitched roofs made of tile, asphalt shingles, ceramic tile, panel shingles and standing seam boards. Provides toughness to withstand extreme weather conditions, Weight: 1210.0 pounds, Manufacturer: UDSKNV[KSL