: VIGRUE in high spirits attribute untainted Steel Hex Socket Head Cap Screws Nuts Flat Washers Kit. : 7.93 g/cm ^ 3 Heat-Resistant up to 800 degrees centigrade, also discriminate rust and in high spirits tenacity quality. : 1. Screws : Hex Socket Head Cap Screws. . . : M3 M4 M5 M6 -LRB- Include M3 M4 M5 M6 -RRB-. . . : 304 untainted Steel. . . Package : 520PCS. Everything is very and enough in the case. The case is very to clear and closing curtain Package contents : Four Free Hex wrenches Included M3 Hex wrenchØ2 .5 mm Size : 19 * 55 mm M4 Hex wrenchØ3 .0 mm Size : 23 * 57 mm M5 Hex wrenchØ4 .0 mm Size : 24 * 65 mm M6 Hex wrenchØ5 .0 mm Size : 27 * 77 mm 10pcs M3 X 8 10pcs M3 X 12 10pcs M3 X 16 10pcs M3 X 20 45pcs M3 Nuts 45pcs M3 Washers 10pcs M4 X 8 10pcs M4 X 12 10pcs M4 X 16 10pcs M4 X 20 45pcs M4 Nuts 45pcs M4 Washers 10pcs M5 X 8 10pcs M5 X 12 10pcs M5 X 16 10pcs M5 X 20 45pcs M5 Nuts 45pcs M5 Washers 10pcs M6 X 8 10pcs M6 X 12 10pcs M6 X 16 10pcs M6 X 20 45pcs M6 Nuts 45pcs M6 Washers Package Quantity : 520PCS. Hex Socket and nuts -LRB- + -2 % -RRB-. : Products contain limited parts, please do not let children play, to prevent accidental swallowed. VIGRUE : VIGRUE is a professional person company of fasteners. If for any reason our set does n't shape your expectations or if something is inappropriate with the set then we will it at no other cost or refund your money. We are of our product and when you receive yours you will be joyful with it too ! .