This 18mm White Plastic Cap features smooth sides and glossy surface for a sleek, contemporary appearance. Made from polypropylene (PP), this plastic heavy-duty lid is very durable. Cap includes a foam liner that is compatible with many substances and is great for general lining applications. Cap's 18-410 neck finish allows this cap to fit on 18-410 vials, bottles and jars.

Key benefits:

  • 18-410 neck finish
  • Smooth sides
  • Includes foam liner
  • Made from polypropylene (PP)
  • Easy removal
  • Heavy-duty and durable


Polypropylene PlasticPolypropylene (PP) is a tough plastic that has good chemical resistance. PP is translucent in its natural state but can have a glossy finish when produced with color. Some examples of common products made with PP are dairy and medication containers. Polypropylene is suitable for hot fill applications of up to 165°F and is therefore great for autoclaving. It is not recommended for cold or sub-freezing temperatures. The Cary Company has an assortment of polypropylene plastics available for purchase, such as plastic caps and jars, which have a higher tolerance for chemical products.


This information has been provided as a general guide. It is the customer's responsibility to select the proper container for product and application compatibility.

Additional Information

More Information
Neck Width18 mm
Neck Finish18-410
Cap LinerFoam Liner
Liner CompatibilityGlass, PE (HDPE, LDPE), PET, PP, PVC, Universal
Dimensions0.787" Dia. x 0.539" H
Case Pack10,000 ea.
Pallet Pack180,000 ea. (18 Cases)
Case Weight40 lbs.
Pallet Weight720 lbs.
Case Dimensions22" L x 18" W x 12" H
Q & A
Customer Questions
Can you ship internationally? Where are you located?
The Cary Company online ordering platform is only set up to ship within the United States. For international shipments, please contact us at 630.629.6600 or Sales@thecarycompany.com, and we will be happy to process your order. Our main warehouse and office are located in Addison, Ill. We also have warehouses in across the United States that you can see here. Thank you for choosing The Cary Company.
Which styles do continuous threaded caps come in?
CT caps come in smooth top/smooth side, smooth top/ribbed side, matte top/ribbed side, and vented styles.
What’s the benefit of using this continuous threaded cap?
CT caps are widely used across industries due to its sleek look, great grip and easy use when opening and closing. Its wide surface allows for an ideal platform for labeling.
What type of containers are often paired with continuous threaded caps?
Continuous threaded caps can be used with various industries and numerous sized containers anywhere from small glass vials to industrial F-style containers. Compatible containers are listed (though not limited to) under the related items section of the product page.
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