... . OEM & Customize non-standard products welcome.6. Surface treatment: Plain, black finished, Zinc plated, Hot Dip Galvanized.7. Packing of ... .8, 8.8, 10.8and12.9; inch grade:gr2 and gr5Surface treatment:Plain, zinc plated, yellow zinc plated, HDG, blackStandard:DIN934, ... ISO4032, ANSIHead mark:S |8|, S 8, S 10 and according ...