... , 6.8, 8.8, 10.8,S304 3. bolt, nut, washer, screws,threaded rod bolt and nut1. DIN, ASME, ISO, EN standard2. Grade 4 ... .8, 6.8, 8.8, 10.8,S3043. bolt, nut, washer, screws ... , black5. carbon steel, stainless steel6. Round, hexagonal, square head, stud bolt.7. package: box and pallet. CERTIFICATE: ISO9001 bolt and nut