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1.40ml Internal Thread Push Cap Tubes

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Do you want pre-capped tubes? Please contact us for cap type and cap color.

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Improve your sample storage workflow

With Micronic's 1.40ml internal thread push cap tubes

Micronic's range of internally threaded tubes

The Micronic 1.40ml internal thread push cap tubes are available with a flat exterior bottom that provides an affordable way to improve sample storage, sample handling and logistical processes.

These tubes have a code surface that cannot be separated from the tube due to Micronic’s unique 2K injection molding technique. As a result, tube codes can never wear or fall off. The 1.40ml push cap tubes can be purchased in a refill carrier, in bulk, in Micronic’s 96-well format ULT rack, or Micronic’s 96-well format Roborack and Comorack.

A Micronic 96-well format rack with lid of push cap tubes in freezer

Product features

Optimal storage

Micronic’s internally threaded push cap tubes provide the most optimal environment for storage at ultra-low temperatures.


The push cap tubes are available non-coded, alphanumeric-coded, or with a unique 2D Data-Matrix code on the bottom.

Unique molding technique

The black code surface cannot be separated from the tube due to Micronic’s unique patented 2K injection molding technique.


The 1.40ml push cap tubes are resistant to chemical solvents. They are also produced in a class 7 clean room and are RNase/DNase and Pyrogen free.

  • Material Highest purity PP
  • Inner tube shape V-bottom / U-bottom
  • Working volume (+21°C) 1.13ml (V) and 1.19ml (U)
  • Tube height in rack 46.5mm (without cover)
  • Temperature range -80°C to +100°C
  • Available in bulk, refill carrier, 96-well racks

Satisfied customers

That's why we do it

"NBS Scientific worked with us to establish what our needs were and how we could use the best system to accomplish those needs. We were trying to improve our sample storage efficiency and tracking. Overall, I liked the quality, fit and finish, and the simple software of the products we purchased most."

"NBS Scientific's customer service is excellent and the product came quickly."

"NBS Scientific provided excellent communication and timelines on shipment volumes, both of which are incredibly important factors when trying to plan and implement a testing strategy of this scale. Before we set up our initial purchasing agreement with NBS, I can't tell you how many hours I would spend week after week trying to order tubes, only to have them get backordered. Being able to work out a long-term plan that would answer all of our needs and then get timely communication from our sales rep and the entire NBS team has been great. NBS Scientific has been a great partner in this endeavor. I've been very pleased with all of our collaboration. I would highly recommend them as a distribution partner."

“We were hoping to replace our old existing equipment. The technical expertise at NBS Scientific was excellent. We went through several options that solved my needs and we narrowed down a suitable option that fit our price range and features.”

"Our representative, Molly, has been one of the best representatives I have worked with. She has proven herself to be knowledgeable and helpful if there are any questions regarding product selection and will respond to any inquiries whether it be quotes or questions in a timely manner. You will not be disappointed with the level of care and communication that NBS will offer."

“We needed a compact solution for uniform storage in the lab. The Micronic products we purchased were organized, the right size, and easy to use. Our sales rep helped us locate the options we needed.”

“We purchased mat caps and decappers from NBS to help with creating DNA libraries. They offered great customer service and a quick response time.”


Need more information?

Don't hesitate to contact us

Have questions about the 1.40ml internally threaded push cap tubes? Eager to request a sample? Contact us today with your questions.

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Product downloads

  • Tubes with Internal Thread Non-coded Download
  • Tubes with Internal Thread 2D or Alphanumeric coded Download

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