Standar DIN, ASTM/ANSI JIS EN ISO, AS, GBBaja Grade: 4/6/10/12 SAE: Gr.2, 5, 8;Finishing Seng (Kuning, Putih, Biru, Hitam), Hop Dip Galvanized (HDG), Oksida Hitam, Geomet, Dacroment, Anodization, Berlapis Nikel, Berlapis Seng-Nikel
kacang heksagonal
Bahan (baja karbon, Baja tahan karat)