Screw and nut storage box, compatible with color management

I used to use the drawer-style storage box below, but it had the following disadvantages

So I later switched to the current method and used 50ml transparent plastic bottles to store screws and nuts

Preparation:

Note: First, print with different colors to distinguish major categories. Then use different-colored labels to distinguish intermediate categories. Finally, use different-colored pens to distinguish minor categories. With this three-level classification system, you'll have more than enough options to sort even the smallest parts.

For purchasing the square bottle, you can refer to Pinduoduo