[Details of screw set] M3 bolt, M3 nut, M3 washer, M4 bolt, M4 nut, M4 washer. Bolt length: 8mm / 12mm / 14mm / 16mm / 20mm. It is a set of 480 screw bolts in total.

[Hexagon socket head cap screw set package details] Hexagon socket head cap screw M3, Hexagon socket head cap screw M4, Hexagon socket head cap screw M5, Hexagon socket head cap screw M6 There are 10 products for each model. Nuts, washers, nuts, 4 types, 45 each. A total of 520 pieces in 4 sizes.

Flat head screw with cross hole Material] High quality color galvanized surface. Since the surface is galvanized, it has excellent durability, corrosion resistance, and chemical resistance. Strong, sturdy and resistant to deformation.

750-Piece Hex Socket Flat Head Countersunk Bolts Screw Nut Assortment Kit 

480 Pcs M3 M4 Drive Pan Washer Head Machine Screw Phillips Head Screws with Pad,  Machine Screws Assortment