Detailed Product Description 1) Name:Standard Fastener2). Material: Carbid steel, stainless steel,ect.3). Grade: 4.6 - 10.9, 304(A2-70),316(A4-80)4). Surface: Black, Zinc Plated, Yellow Zinc Plated,Dacroment,ect.5 Packing: bulk, box packing, Carton, Pallet6 We can supply almost all the standards such as DIN, ISO, ....