Collection: Screw caps

The right screw cap starts with the bottle it needs to close. Explore the bottle screw caps available here, including aluminium pre-threaded closures and GPI-style options, in different dimensions and finishes.

For bottlers, manufacturers and packaging buyers, the aim is to find a closure that matches the bottle specification, works with the intended contents and fits the way it will be applied.

The bottle neck sets the brief

A cap's diameter is a starting point, not a complete specification. The bottle neck finish describes the neck's dimensions and configuration, including the thread that engages with the closure.

Two screw bottle caps with a similar appearance or nominal diameter should not be treated as interchangeable without checking their technical details.

Compare the closure dimensions, height and stated finish with the bottle specification. Aluminium pre-threaded caps and GPI caps require the same attention to the intended pairing: a format description alone does not establish compatibility.

Keep the bottle and closure information together during purchasing. Reviewing both specifications before ordering helps buyers resolve uncertainties while there is still time to adjust the packaging brief.

Give material and colour separate decisions

Aluminium screw caps offer a metal closure option, while black, gold and silver finishes give buyers scope to coordinate the cap with the bottle, label and wider presentation. Colour can support a consistent range or distinguish variants, but it should follow the technical selection.

Material also needs its own assessment. Neither metal bottle caps nor plastic screw caps should be assumed suitable for particular contents simply because they fit the neck.

Establish the intended use and request us the relevant supporting information. Where a required detail is absent, resolve it before approving the closure.

Plan how the cap reaches the bottle

Closure purchasing and production planning belong in the same conversation. The category also includes bottle capping tools intended for certain pre-threaded closures. Their presence does not establish suitability for every cap or bottle combination.

Identify the proposed application method early, then confirm which equipment is appropriate for the selected closure. Include any existing equipment details in the enquiry rather than assuming a new cap can be introduced without review.

A clear purchasing brief connects the bottle, contents, closure and application method. Use it to narrow the catalogue to relevant options and give everyone involved in ordering and production a shared specification.