Product decription1. [High quality]: 12.9 grade carbon steel, corrosion resistance, good toughness, ultra hard,abrasive resistance and low temperature resistance, which ensure long lasting results;2. [Metric size]: This grug screw kit includes sizes m2 m3 m4 m5 m6 m8, totally meet your need;3. [Wide Application]: Hex allen head socket set screw can be used for door handles, light fixture,bathroom sink faucet, knobs, faucet, armament repair,etc,suitable for shop, garage or home use;4. [Handy Container]: All set screws come in a plastic box with dividers, latched securely enough, don?t worry about set screws spilling out or messing.Convenient for use and storage.Package listM2:M2*4mm-----------50pcs M2*5mm-----------50pcsM3:M3*3mm-----------50pcs M3*4mm-----------50pcsM3*5mm-----------50pcs M3*6mm-----------50pcsM4:M4*4mm-----------30pcs M4*6mm-----------30pcsM4*8mm-----------30pcs M4*10mm----------30pcsM5:M5*5mm-----------30pcs M5*6mm-----------30pcsM5*8mm-----------30pcs M5*10mm----------30pcsM6:M6*6mm-------------20pcs M6*8mm -----------20pcsM6*10mm-----------20pcs Wrench-------------6pcsM8:M8*8mm----------10pcs M8*10mm----------10pcsM8*12mm---------10pcs M8*16mm----------10pcs