K2 Solar Wood Screw 8x180

Stainless steel wood screw designed for securing solar systems and roof hooks on raftered roofs with thermal insulation. Features two wood threads for distanced fastening, with the lower head thread securing the counter-batten and loads transferred directly into the rafter via the threaded section. The washer head allows secure and durable fastening of the roof hook flush to the wood. Material is stainless steel with blank surface finish.