Specifications: 1)Size: M6-M30 2)Material: SUS201; SUS302; SUS304; SUS316 3)Bolt, Plain Washer Hex Head Bolt 1.Size: M6-M302.Material: SUS201; SUS302; SUS304; SUS3163. bolt, nut, washer, screws,threaded rod4. galvanized, painted, bright, black5. carbon steel, stainless steel6. Round, hexagonal, square head, stud bolt.7. package: box and pallet. Hex Head Bolt