Ariel Coroline Black Roofing Sheet Fixings are designed for securely fastening Coroline corrugated bitumen roofing sheets to timber roof structures. These purpose-made roofing nails feature a galvanised ring shank for a secure fixing, together with a black waterproof cap and washer to help protect against rainwater penetration. Ideal for installing and repairing Coroline roofing on garden sheds, garages, workshops, summerhouses and other suitable outbuildings.