Do you want to nail bitumen roof shingles? The job is done in no time with our Wovar Clout nails. Clout nails are short nails with an extra wide head and a sharp point. The wide head provides a high clamping range. This prevents the head from being knocked through soft material such as roofing felt. Wovar supplies clout nails made of very strong galvanized steel in 3 different sizes, namely; 3.0 x 15 mm, 3.0 x 20 mm and 3.0 x 25 mm.