Standards: GB/T5782, 5783/DIN931-933
Materials: Carbon steel, alloy steel
Finish: black, dacromet,zinc
Grade: 8.8,10.9,12.9
1). Standard: DIN912 bolt 2). Grade: DIN Gr. 4.6--Gr. 12.9 3). Material: Carbon steel, alloy steel, stainless steel, etc. 4). Surface: Plain, black, ZP, ZY, H. D. G. etc. 5). Packaging: 25kgs per box, 36 boxes per pallet ...