Closures Neck-13
Closures Neck-13: Tight from the First to the Last Turn
Whether a nail polish stays fresh for a long time is decided at the bottle neck. This is where glass and cap meet, and this is exactly where everything has to fit. Our 13-415 closures reliably seal your Neck-13 bottles and are easy to open again even after frequent use.
What Matters in a Screw Cap
A good screw cap fulfils three tasks. First, it keeps air out so that the polish in the bottle stays liquid. Second, it holds the brush and guides it centrally into the bottle. Third, it can be screwed on so easily during filling that your production line keeps its pace. Whether all of this succeeds depends directly on the fit of the thread.
Thread 13-415: The Dimensions at a Glance
With the 13-415 thread, the first number indicates the diameter of the neck in millimetres. This refers to the outer diameter, i.e. the measurement across the thread peaks. The core diameter at the base of the thread turns is slightly smaller. The 415 stands for a tall neck finish. The pitch determines how far the cap moves down with one turn. With this standard, it sits tight after about two turns.
Tolerances: Small Margin, Big Effect
Glass is formed at high temperatures, which creates minimal deviations. The 13-415 standard compensates for them through defined tolerances. If bottle and cap are within these values, the connection sits cleanly and without wobbling. On request, we will be happy to send you a table with all relevant dimensions.
One System, Many Combinations
The closures are supplied separately. To match them, you will find the Neck-13 bottles and the Neck-13 brushes in the Nail Polish Bottles category. This lets you put together a complete set according to a uniform standard. For wider bottle necks, Neck-15 bottles, Neck-15 closures and Neck-15 brushes are available.
You are also well supplied with us beyond nail polish. Our range extends from bottles, jars and pots, airless packaging and pens to closures. On request, we also produce the contents. We fill nail polish, UV gels, beard oil, acetone, coffee machine descaler, room fragrances and many other liquids directly into the packaging of your choice.
Why Customers Rely on Owowo
Owowo brings packaging solutions, contents and service together in one place. You benefit in very practical ways:
- Wide selection: packaging for many industries from one supplier.
- Immediately available: a large part of the range is held in stock
- Fast delivery: we ship quickly and flexibly.
- Filling and customisation: your product is created entirely with us.
- Personal service: you can reach our dedicated team via contact form or by phone.
- Flexible payment: you pay in advance or on invoice.
This way you will find the right solution for every project. Order your 13-415 closures from Owowo now!
FAQ – Answers to Frequently Asked Questions
What does the designation 13/415 mean for the closures?
A closure with the designation 13/415 fits a bottle neck with a thread diameter of about 13 millimetres and the neck finish 415. The internal thread of the cap is precisely matched to the external thread of these bottles. The 415 stands for a tall neck with around two thread turns, which gives the closure a particularly good hold. Our 13-415 closures therefore fit all Neck-13 bottles in our range.
How do I check whether a closure fits my bottle?
Two dimensions on the bottle neck are decisive: the outer diameter and the core diameter. You measure the outer diameter across the thread peaks and the core diameter at the base of the thread turns. Both values must match the internal thread of the cap. The most accurate way to measure is with a calliper. It is even easier via the designation on the product: if bottle and closure are both marked 13/415, they fit together.
What role does the pitch play in a screw cap?
The pitch determines how far the cap moves down the neck with one full turn. For a closure to run on straight and seal tightly, bottle and cap must have the same pitch. If the values differ, the cap jams after just a few millimetres. With the 13/415 standard, the pitches of bottle and closure are precisely matched.
Do 13/415 closures also fit bottles with 13/400 or 13/410?
Diameter and pitch are the same for these variants, but the neck height differs. A 400 neck is short and has about one thread turn. A 410 neck has around one and a half, a 415 neck about two. If you put a 415 cap on a shorter neck, the connection remains imprecise and the seal suffers.
