Thermo scientific screw cap micro tubes Screw cap with 0-ring Violet Thermo scientific

Thermo Scientific™ Screw Cap Micro Tube caps with O-ring are designed to create a secure seal with the Thermo Scientific micro tube providing Pure Protection for sample preparation, transfer and storage applications.

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 lbsf.in to 2.5 lbsf.in; Metric: 1.412 Ncm to 28.24 Ncm.
Torque Automated/Robotic Torque Standard: 1.312 lbsf.in to 2.5 lbsf.in; Metric: 14.83 Ncm to 28.24 Ncm