Item Type: Screw Combination Set_x000D_ Standard Type: German standard_x000D_ Model: Tightened hex_x000D_ Material: Stainless steel A2-70_x000D_ Thread Specification: M3, M4, M5, M6, M8 1These screws are made from stainless steel for rust protection, durability and long service life. 210 common sizes and you can concentrate on your project without worrying about not having the correct screws 3Fixing component, for industrial and construction fasteners. 4Conform to the requirements of EU ROHS & WEEE environmental protection directive. 5Well packed and assorted in a resealable transparent box for convenient carry and storage.40 X M3x3 40 X M3x4 40 X M3x6 30 X M4x4 30 X M4x6 30 X M5x5 30 X M5x8 20 X M6x6 20 X M6x10 20 X M8x8