... 10mm to 150mm, D 1.8 to 4.5mm 3.Flat Head or Umbrella Head galvanized roofing nail with umbrella head1. Material: Stainless ... steel wire SUS304, 316, 204,2012. Head: oval,loose head, flat3.Shank: smooth, twist, ring4. Diameter: 1.9 mm ... asbestos shingle, construction and building.galvanized roofing nail with umbrella head packing:25kgs/ctn; 7lb/box, 8boxes/ctn, 16boxes/ctn ...