CBAM (Carbon Border Adjustment Mechanism) currently targets high carbon-emission product categories such as steel, aluminum, and cement. Since the primary raw material for screws is steel, screw manufacturers exporting to the EU are within the scope of impact. Practical impact occurs on two levels: first is reporting obligations—exporters need to provide product carbon content data, and buyers or importers may request suppliers to provide relevant documents; second is cost pass-through—buyers may reflect CBAM compliance costs in their procurement terms by requesting price concessions or prioritizing suppliers who can provide complete carbon emission data. Three practical preparation directions now are: clarify your own product's steel source and manufacturing process carbon emission data; confirm whether your current export document workflow can quickly add the data fields required for compliance; and communicate with EU buyers to confirm what document format they currently require. All of these need to be organized in advance, as last-minute document supplementation typically disrupts the shipping schedule.