Standard DIN, ASTM/ANSI JIS EN ISO, AS, GBGiredi yachitsulo: 4/6/10/12 SAE: Gr.2, 5, 8;Kumaliza Zinc (Wachikasu, Woyera, Wabuluu, Wakuda), Hop Dip Galvanized (HDG), Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated
Mtedza wa hex
Zofunika: chitsulo cha kaboni, chitsulo chosapanga dzimbiri