GALVANIZED ROOFING NAILS, UMBRELLA HEAD, SMOOTH SHANK Our galvanized and hot dipped galvanized roofing nails have smooth shank and twisted shank. Specifications: 2'' x BWG8, 2-1/2'' x BWG9, 2'' x BWG9, 2-1/2'' x BWG9, 3'' xBWG9, 2'' x BWG10, 2-1/2'' x BWG10, 3'' x BWG10, 2'' x BWG11, 2-1/2'' x BWG11, 3'' x BWG11Packing: Bulk, box, bag, or according to customers' requests