... 1. DIN, ASME, ISO, EN standard 2. Grade 4.8, 6.8, 8.8, 10.8,S304 3. bolt, nut, washer ... threaded rod1. DIN, ASME, ISO, EN standard2. Grade 4.8, 6.8, 8.8, 10.8,S3043. bolt, nut, washer, screws ... rod4. galvanized, painted, bright, black,oiled5. carbon steel, stainless steel6. Round, hexagonal, square head nut.7. package by box. CERTIFICATE: ISO9001 ...