Screw Cap Micro Tubes

Choose Thermo Scientific™ Screw Cap Micro Tubes, which available in conical and free-standing designs, when seeking secure, short-term sample storage in low temperatures. Their robust design and material selection are well suited for work with biologics and offer rich features, including ultra-clear, externally threaded tubes and UV protective amber tubes. Options include: with or without a self-standing skirted bottom, with or without tethered straps, non-knurl and knurled tubes for single-hand operation, choice of multicolored caps and volume sizes of 0.5mL, 1.5mL and 2.0mL sizes. Screw Cap Micro Tube Caps offer a durable design incorporating an O-ring that helps prevent leaks under demanding conditions.

Non-Sterile is free of Rnase/Dnase, Human and Mouse DNA, Pyrogen & Endotoxin, ATP, PCR Inhibitor.
Sterile E-Beam is free of Rnase/Dnase, Human and Mouse DNA, Pyrogen, Endotoxin, ATP and PCR Inhibitor.
Packaging is tailored to meet broad requirements. Tubes are packaged with and without caps, caps are attached or unattached, placed in a single bag and double bagged feature for clean room environments is available upon request.
100% virgin polypropylene resin specifically selected for high clarity and biologic applications.
O-ring design, thickness and material selection have been optimized to provide protective features for maximum sealing ability, biologic interaction and temperature capability. The black colored O-ring is made from EPDM.
Automated System Compatible. Whether automate is used for filling, capping or labeling, the product is designed to withstand high torque pressures associated with automation. Product design helps to address common automated issues like: fissure cracks, bowl feeder jam, over/under torqued caps and cross threading.
Volume range of 0.5, 1.5 and 2.0mL.
Tube Color choices are an ultra-high clarity, natural color or amber option which provides ultra violet (UV) protection of 1.22% transmittance between 220 and 500nm.
Standard or Tethered cap, all available in a rainbow of colors. Visit cap product page for additional information.
Knurl tubes feature the ability to lock tube into specialty racks for single-hand operation.
Non knurl tubes ideal for automation and labeling, tubes are plain, removed of any labeling interference.
Skirted or Self Standing tubes can stand upright on their own, no rack required.
Conical tubes requires a rack to support them in the upright position.
Low nucleic acid and protein binding and low enzyme inhibition are features that Resin selection features.
RCF range from 18,000 to 25,000 x g.
Temperature Range -80°C to +95°C. Short-term storage in -80°C, -20°C, dry ice and wet ice. Short-term storage in vapor phase LN₂. Suitable for a quick dip flash freeze in LN₂.
Water Bath compatible up to +95°C.