【Fine Screw Compatibility】The Digital Screw Counting Machine includes a hopper with an adjustable track covering 1mm-5mm, making it compatible with various screw types such as machine screws, self-tapping screws, round heads, flat heads, and washer screws. It accommodates screws with a diameters of 1.0-5.0mm and a length of up to 20mm. 【Screw Counter】This Automatic Screw Counting Machine features precise digital counting, recording each dispensed screw accurately, with a maximum count of 9999, aiding in standardized production management. 【Digital Display Function】Equipped with digital counting and reminder features, this Screw Counting Machine offers auto, manual, and normal working modes, ensuring accurate recording of each screw dispensed. 【All-Metal Thickened Silo】Easily pour screws into the durable metal silo. The drum rotates upon startup, and you can adjust the brush position for proper alignment, ensuring stable and continuous feeding. 【Wide Application】Ideal for self-tapping screws, ferrous metal screws, flat heads screws, and washer screws. Perfect for electronic assembly in toys, communication equipment, home appliances, and auto parts.