This is the 130 Piece Premium Flat Head Screw Set from TrakPower.

FEATURES: Steel construction with hex heads
          Contains the most commonly required flat head screws, locknuts and
            washers used in radio control vehicles
          Clear plastic box with removable dividers allows custom size storage
            spaces

INCLUDES: Ten each;
            3x6mm Flat Head Screws
            3x8mm Flat Head Screws
            3x10mm Flat Head Screws
            3x12mm Flat Head Screws
            3x14mm Flat Head Screws
            3x16mm Flat Head Screws
          Five each;
            3x18mm Flat Head Screws
            3x20mm Flat Head Screws
            4x8mm Flat Head Screws
            4x12mm Flat Head Screws
            4x14mm Flat Head Screws
            4x16mm Flat Head Screws
          Ten Each;
            3mm Locknuts
            4mm Locknuts
            3mm Flat Washers
            4mm Flat Washers