Standard ASTM Grade 55/105 Finish Carbon Steel/Steel: Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), Black, Geomet, Dacromet , Anodization, Nickel plated, Zinc-Nickel plated, Teflon(PTFE), etc. Material Alloy steel Size 1/4"-4",M6-M100 Length 1/2"-144"(12 feet),10mm-5800mm
