High Quality Steel Nail Steel 45# 1"-5" Length,3mm-5mm Diameter Shank: Smooth, Grooved, Spiral, ... Market!! Concrete Steel NailSpecifications:1)Material:CarbonSteel # 45 steel2)Shank dia:1.2-5 .0 MM Length:1 "- 6"3)Surface:polished ... ,annealing,coatedProduct Specifications:Material: Carbon Steel # 45 steelLength: 1''--6''Shank diameter : 1.2-5 .0 MMSurface Treatment: polished, galvanized , annealing ...