Concrete Nails 1.Material: carbon steel,alloy steel 2 Standard:DIN,GB,ISO ... Number: Concrete NailGrade: as your requirement.Length: 1"-4" as your requirementDiameter: 2.5mm-4.5mm ... GB, ISO, ANSI, ASME, JIB etc.Material: Carbon Steel, Stainless steel, Aluminium, Brass. Coating: Plain, zinc plated, galvanized, ... These are made of high-quality carbon steel and are zinc-plated to provide strength and ...