Description: 442pcs M3 Stainless Steel Hex Head Srews Bolt Nuts Hexagon Handle Tool Kit   Hexagon screws are commonly used in mechanical、 mainly for easy fastening、 demolition、 not easy to slip angle and other advantages、 mainly used in electronics、 electrical、 electric、 electric power、 chemical industry、 water conservancy、 mechanical equipment、 furniture and other fields.   Specifications: Material: Stainless Steel Color: Silver Screw Specification: M3 Handle Size: 50x18mm Hexagon Size: 5mm Inner Hex Size: 3mm Quantity: 442pcs a Set                Specifications         M3X6         M3X8         M3X10         M3X12         M3X16         M3X18               Total Length(mm)         11         12         13         15         19         20               Quantity         20pcs         20pcs         20pcs         20pcs         20pcs         20pcs                                                                                           Specifications         M3X20         M3X25         M3X30         M3X35         M3X40         nuts               Total Length(mm)         23         28         32         37         42         6               Quantity         20pcs         20pcs         20pcs         20pcs         20pcs         220pcs       Package Included: 220pcs Screws 220pcs Nuts 2pcs Handle   More Details: