Large diameter head, perfect for attaching roofing felt, slate and shingles. Provides high levels of rust protection. Shank Dia. mm: 3.35 Length mm: 45 Material: Aluminium Approx. Pcs Per 1kg: 870. TIMco clout nails are available in aluminium finish. Product Features: Aluminium Clout. Corrosion Rating 3 - Urban & industrial areas with a low salt atmosphere. Head Type: Round. Length mm: 45. Material: Aluminium. Pack Dimensions L x W x H mm: 318 x 250 x 100. Pack Weight kg: 1.050. Product Code: ACN45LB. Shank Dia. mm: 3.35. Size mm: 45 x 3.35. Substrates: Roofing Felt, Slate, Shingles. Weight kg: 1.0.