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Thermo Scientific™ Screw Cap Microcentrifuge Tube Caps

Prevent leakage under demanding conditions with these screw-cap microcentrifuge tube caps with o-rings, which are optimized for secure, short-term storage in low temperatures.

Manufacturer:  Thermo Scientific™ 3471RS

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Catalog No. 14-755-244

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Prevent leakage under demanding conditions with Thermo Scientific™ Screw Cap Microcentrifuge Tube Caps feature O-Rings to form a secure seal. Optimized for secure, short-term storage in low temperatures, these autoclavable screw caps are available in a variety of colors and adapt to your scientific experiments.

Non-Sterile is free of Rnase/Dnase, DNA, Pyrogen & Endotoxin
Sterile E-Beam is free of Rnase/Dnase, DNA, Pyrogen, Endotoxin, ATP, PCR Inhibitor
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
Knurled caps improve grip when opening and closing tube
Frosted cap writing pad for easy product marking and identification
Color caps offered in multiple color options ideal for separating, coding and tracking samples. Amber colored caps ideal for UV protection of 1.22% transmittance between 220 and 500nm
Tethered caps remain attached to the sample tube but can rotate completely for convenience--the tethered screw cap is the solution when it is important to maintain the same cap with the same tube. Non-tethered caps available
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 and suitable for a quick dip flash freeze in LN2
Torque Manual/Hand Torque: Standard: 0.125 to 2.5; Metric: 1.412 Ncm to 28.24 Ncm.
Torque Automated/Robotic Torque Standard: 1.312 to 2.5; Metric: 14.83 Ncm to 28.24 Ncm



Not Autoclavable
100% Virgin Polypropylene (Cap), Ethylene Propylene Rubber Diene Monomer (O-ring)
500 x pk, 10 pk x cs, 5000 x cs. Single Bagged. ZipLock bag.
Low Nucleic Acid and Protein Binding & Low Enzyme Inhibition
Cold Storage: -80° to +95°C. Liquid Nitrogen: Short term Vapor Phase & Quick Flash Freeze acceptable, not recommmended for LN2 submersion storage
25,000 x g
Screw Cap with O-ring, Red, E-Beam Sterile, cap only no tube
Sterile Electron Beam, SAL 10-6 Free of: Rnase/Dnase, DNA, Pyrogen, Endotoxin, Bioburden, ATP & PCR Inhibitor
Manual/Hand Torque: Standard: 0.125 to 2.5; Metric: 1.412 Ncm to 28.24 Ncm. Automated/Robotic Torque Standard: 1.312 to 2.5; Metric: 14.83 Ncm to 28.24 Ncm
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Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter.
Screw cap micro tubes and caps are not recommended for autoclave. Sterile options available.
Not intended to submerge and store in liquid phase LN2.