Umbrella headRoofing nail smooth & twitsted shank zinc plated 8G,9G,10G,11G,12G,13G Material:Q195 &Q235 UMBRELLA HEAD ROOFING NAILRaw materialQ195 ,Q235DiameterBWG8 , 9 , 10 , 11 , 12 , 13Length1”—7”ShankSmooth shank & Twisted shankSurfaceZinc plated(electro galvanized & hot dipped galvanizedPacking7LBS *8Box ; 7LBS*16Box ; 25kg/carton with pallet Roofing nail