Understanding Perfume Bottle Neck Finishes and Closures

Crimp vs screw

Most fine perfume bottles use a crimp finish, where the metal collar and fine-mist pump are crimped over the neck for a secure, tamper-evident seal. Screw finishes use a threaded cap or pump and are refillable and easier to open.

Common neck references

Neck sizes are often expressed with an FEA number (such as FEA 13 or 15) for crimped perfume bottles, or a thread size such as 18, 20 or 24 for screw caps. Matching the bottle, pump and collar is essential to avoid leakage or a loose fit.

How to confirm compatibility

1. Identify the neck finish of the bottle

Use the cap-fit checker and the cap selector, and we validate the fit on a physical sample before production.

Why the neck is the most critical dimension

A bottle can be visually excellent and still fail through a leaking seal or a loose cap, which is why the neck is measured and checked against the pump and collar before production. The crimped finish that most perfume bottles use must seal the pump and collar evenly without damaging the glass, while a screw finish must thread and close cleanly. Confirming the exact FEA or thread reference and validating it on a sample avoids the two most common closure problems.

The neck and cap should also be confirmed against the filling method, since some automated filling and crimping lines require specific finishes, and a bottle intended for a customer's production line rather than our own must be matched to that equipment.