Din571 size: from M4 To M30
Length: from 0 to 1,200mm
Lag screw size: from 1/4 to one inch
Length from one to 24 inches
Surface: plain, zinc-plated (Cr3 and Cr6), zinc yellow, black, nickel-plated and dacromet
Material: low and middle carbon steel, stainless steel (A2, A4)