zip or zipper: a series of teeth that interlock and separate as we move the moving part up or down
slider or runner: the moving part of the zip (usually metal)
pull or puller or tab: the top part of the runner that we catch and pull
zip coil: the series of teeth that form a plastic coil, applies to polyester zips only
zip teeth: metal or resin (plastic) teeth chain
stopper: small metal (or plastic) bits that terminate the slider movement
tape or fabric: the material that the teeth or zip coil are attached to
open-ended zip: usually found on jackets, you have to join the two sides at the bottom of the zip before you can zip up
insert pin: the metal pin (or plastic) at the lower end of a jacket zip (found on open-ended zips)
insertion box: the metal small box (or plastic) at the lower end of a jacket zip, where the insert pin goes in to before zipping up (found on open-ended zips)
double-ended or 2-way open-ended zip: a second slider here plays the role of the insertion box. The advantage is that you can un-zip from the lower end of the zip if you want.