Hanger bolts   Roof cladding: Corrugated roofs & trapezoidal sheet   For corrugated sheets (such as those of fibre cement) or trapezoidal sheet roofs, corrugated roof fastening sets consisting of a special hanger bolt with EPDM seal and a mounting plate are used. Please note that illustrations and thread lengths may vary! Hanger bolt set 12 x 300 pre-assembled with vulcanized EPDM seal (UV resistant) and 3 flange nuts in V4A.