Slide fasteners with base metal chain scoops (teeth) are classified under 960711. Those with plastic teeth, coil construction, or any other non-base-metal scoop material fall under 960719. The scoop material — not the tape or slider material — determines which subheading applies.

Sliders, pulls, and other components specifically designed for slide fasteners are classified under 960720 as parts of slide fasteners, provided they are presented separately. When imported as part of a complete assembled zipper, they are classified with the finished article under 960711 or 960719.