HBS hexagon, wood construction screw, hexagon head, 12.0 x 100, partial thread, TX 40 / SW 17, steel, galvanized, blue passivated, 25 pcs.Area of application:Constructions made of solid and glued laminated timber.Area of application:Wood construction, roof construction, roof insulation, playgroundsNotes:Calculable safety with the REISSER design software.