Pre-threaded screw caps

Your product packaging is judged by the details, and a producer’s worst nightmare is a bottle that leaks during transit. Cheap closures that strip when tightened or fail to snap the security ring correctly can instantly damage your brand’s reputation.

At Vaza.gr, we provide high-precision pre-threaded aluminum caps designed to fit perfectly onto standard bottle necks without requiring complex industrial equipment. Whether you are bottling premium olive oil, spirits, or artisanal syrups, our closures guarantee:

• DIN & PP Standards: Full compatibility with international neck finishes (PP18, PP24, PP31.5) to ensure a glove-like fit for your bottles.
• Zero-Leakage Liners: High-quality internal wadding (EPE liners) that hermetically seals your product, preventing oxidation and leaks.
• Tamper Evident: A security ring that breaks cleanly upon first opening, assuring your end customer of the product's integrity.

Pre-threaded vs. ROPP Caps: What is the difference?

Many of our clients ask if they need expensive machinery to bottle their products. The difference is technical but crucial for your production line:

• ROPP (Roll-On Pilfer Proof): These are "smooth" caps with no initial threading. They require a specialized capping head that applies pressure to the aluminum to form the thread against the glass bottle at the moment of bottling.
• Pre-threaded Caps: These arrive from the factory with the thread already formed. They can be applied by hand or with simple semi-automatic cappers. They offer the same security and premium aesthetic without the heavy investment in ROPP machinery, making them the ideal solution for small and medium-sized productions.

If you are looking for controlled-flow solutions for cosmetics or liquid personal care products, you can also explore disk top caps, which offer convenient use and precise dispensing without fully unscrewing the closure.