The 56WCAO is a Rieke® 70mm natural polyethylene (PE) plastic screw cap (NPS - 8TPI) with GK-98W gasket. This cap can be printed with company or brand label. The 56WCAO offers a tight seal as well as easy access to a container. This cap can be tightened and opened with the W-397 wrench (Part # 34WSCT).


Polyethylene (PE) is the most commonly produced and used plastic polymer in the world. PE has good chemical resistance and is typically translucent and waxy in nature. We have various products made of polyethylene, from buttress screw caps with Flexspout to spill decks. PE bottles have a maximum hot fill temperature of 120°F.


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. The Cary Company does hereby disclaim any and all warranties, expressed or implied, including any implied warranty of merchantability or fitness for a particular purpose or use. We are not responsible for consequential damages arising from customer's selection and use of containers, container and label dimensions, and/or closures supplied by us.

Additional Information

More Information
Neck Width70 mm
Case Pack500 ea.
Pallet Pack9,000 ea. (18 Cases)
Case Weight32 lbs.
Pallet Weight576 lbs.
Case Dimensions20" L x 15" W x 15" H
Pallet Dimensions48" L x 40" W x 52" H
ModelRieke® FS-80
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.
What type of bottles are compatible with industrial caps?
The most popular bottle types for industrial caps are f-style bottles and tight head containers.
What sizes do industrial caps come in?
Industrial caps are available in 38mm-70mm.
Can this cap be opened and closed without using the wrench? Could an average person comfortably close it securely to avoid leaking?
Thank you for your inquiry. There is no wrench needed for this cap and the average person can open and close it with ease. Thank you for choosing The Cary Company!
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Product Reviews

5 out of five star rating on Trustpilot

Based on 2 customer(s) reviews

5 out of five star rating on Trustpilot

anonymous anonymous, 28 January 2020

No problems associated with this product.

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5 out of five star rating on Trustpilot

anonymous anonymous, 23 October 2016

great products

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