Features: Make of carbon steel, manufactured by cold forging, with precise thread structure and high strength, the surface adopts a strengthening process, electro-galvanized coating, corrosion resistance, and beautiful appearance. Advantage: Well-built, solid hardware for assembling most beds, table, chair, crib, cot, or workbench, headboards, cabinets, cupboards, other furniture, etc. Well-built solid fixing component, they are also great replacement for industrial and construction fasteners. Specification: Material: Galvanized carbon steel Thread Diameter: 6mm 20mm, 40mm,50mm，60mm,70mm，80mm Package List: M6 X 20mm ------------ 6Pcs M6 X 40mm ------------ 4Pcs M6 X50mm ------------ 4Pcs M6 X 60mm ------------ 4Pcs M6 X 70mm ------------ 4Pcs M6 X 80mm --------- ----4Pcs M6 Barrel Nuts ------- 26Pcs Allen Wrench ------------ 1Pcs Wood Dowel PinsM6X20mm ------------ 20Pcs