bolt and nut 1. DIN, ASME, ISO, EN standard 2. Grade 4.8, 6.8, 8. ... ,S304 3. bolt, nut, washer, screws,threaded rod bolt and nut1. DIN, ASME, ISO, EN standard2. Grade 4.8, 6.8, 8 ... steel6. Round, hexagonal, square head, stud bolt.7. package: box and pallet. CERTIFICATE: ISO9001 bolt ...