TeeNuts Features; 1) Standard: DIN, ISO, ANSI/ASME, JIS, BS 2)Material:Mild Steel,Carbon Steel,etc. 2) Size:All sizes available. 3) Strength Class: 4H,5H,6H,8H 4) Finish: plain,zinc plated,black,HDG,DACROMET 5) Packing:Standard Export Packing oraccording to customers' specifications.