LARGE L-Foot Hook and hanger bolt are used for tin roof mounting installation.usually,the hanger bolt use M10*200mm for the roof, you also can use M12*300mm, customized is available.
LARGE Steel Cap Kits are very widespread used for solar Steel Ground Mounting installatin, which is made of high strenghth Q235 steel.The DACROMET surface treatment will make it Rust-resistant.