Large diameter head, perfect for attaching roofing felt, slate and shingles. Approx. Pcs Per 1kg150CE Standard WebBS EN 14592:2008Corrosion Rating2 - Occasionally damp/wet, rural and sheltered areasDescriptionLarge diameter head, perfect for attaching roofing felt, slate and shingles. FinishGalvanisedHead Area mm78.11Head TypeRoundLength mm75MaterialCarbon SteelPack Dimensions L x W x H mm265 x 152 x 50Pack Weight kg1.050Point Length mm5.09Product CodeGCN75BService Class2Shank Dia. mm3.75Size mm75 x 3.75SubstratesRoofingWeight kg1.0.