Umbrella Roofing Nails Shank diameter: 2.1-4.0mm length: 18-100mm finish: polish/bright, electro galvanized, hot dip galvanized head type: umbrella head, flated head, checkered head, round head usage: construction, decoration field, bicycle parts, wooden furniture, electrical components, households package: 1. 5/10/20/25 kgs/bulk carton 2. 4/16boxes/carton 3. 1kg/plastic bag 10/25 bags/carton 4. As buyer request