Product Name: 25mm -100mm High Quality Hardened Black Concrete Nails for Construction Building Material: Steel Type: Concrete Nail Standard: ANSI, GB, ISO, JIS Surface: Zinc Plated ,Black Coated Packing: 1kg/Box ,800g/Box, as Customer Demand Usage: for Building ,Construction Trademark: OEM Transport Package: Box Packing, Carton Packing Specification: 20-152 Origin: China HS Code: 73170000 Product Description Galvanized /Black Coated Concrete NailsMaterials#45 Carbon steelDiameter3mm-5mmLength25mm-152mm/1"-6"FinishGalvanized/Zinc Black CoatedShankVertical/DiagonalSize1"x3mm/1.5"x3mm/2"x3.8mm/2.5"x4mm/3"x4.5mm/4"x4.5mmPacking500g-1000g per box,20-25oxes per carton or as customer demandUsageMainly used for cement wall,ground and surface layer material connection and basic structure of fixedLoad capacity20-27 tons per 20 feet container