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Continuous Thread Caps

Everyday Must-Have Bottle Caps

A continuous thread cap, also known as a CT cap, screws onto a container using threads that run around the container’s neck. CT plastic caps can be easily sealed and resealed and are available with ribbed or smooth sides. They feature a smooth, flat matte top, making them ideal for labeling. The Cary Company offers a wide variety of cap sizes, including popular options with diameters of 24mm, 28mm, and 89mm. These continuous thread closures come unlined or lined with various closures including pressure sensitive liners, heat induction liners for HDPE, LDPE, PP, PET & PVC plastics, foil liners, pulp & poly-vinyl (PV) liners, F-217 foam liners, and more.


Product Sourcing - Looking for a specific continuous threaded cap? We can help! The Cary Product Sourcing Team will work with you to find the best solution available. -- Call 630.629.6600!

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Do Continuous Thread Caps Come With a Tamper Evident Seal?

While most plastic threaded caps do not include a built-in tamper-evident feature, we offer several complementary solutions to achieve tamper evidence. Many customers pair our threaded plastic caps with shrink bands or choose from our separate line of tamper-evident caps for added protection and product integrity. Certain types of induction seals will also indicate tamper evidence when applied to plastic thread caps.

Are Continuous Thread Caps Good for Liquids & Powders?

Yes, our continuous thread caps are a versatile solution for both liquid and powder applications. Their threaded design creates a dependable seal when paired with the appropriate liner, helping prevent leaks and maintain product quality. We carry a wide selection of threaded caps compatible with plastic and glass bottles, jars, and containers used across industries such as food, personal care, chemicals, and pharmaceuticals. For liquids, our plastic threaded caps with foam or heat induction liners help minimize leakage and improve seal integrity. For powders or dry goods, unlined or foam-lined threaded plastic cap styles provide easy access while still offering protection from moisture and contaminants.

What Kind of Lining Material Do Continuous Thread Caps Come With?

Our continuous thread caps are available with a wide variety of liner materials to match your product’s specific requirements. We offer both lined and unlined plastic threaded caps, giving you flexibility in your packaging solution. Common options include foam liners, foil liners, pulp and poly liners, pressure-sensitive liners and heat induction seal liners. With this wide range of materials, our threaded caps are trusted to provide leak resistance, product freshness, and compatibility with different container types.

Why Choose Cary?

At The Cary Company, we pride ourselves on offering a range of continuous thread caps and closure solutions to meet your packaging needs. Our diverse selection of plastic thread caps and their compatible liners are offered in competitive bulk and wholesale pricing. Our team of experts is eager to assist you in choosing the right threaded cap or closure, answer any questions, and guide you through your purchase. Call us now at 630.629.6600!

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