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.

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 non-autoclavable screw caps are available in a variety of colors and adapted to your scientific experiments.

Non-Sterile is free of Rnase/Dnase, Human and Mouse DNA, Pyrogen & Endotoxin.
Sterile E-Beam is free of Rnase/Dnase, Human and Mouse 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 LN_2.
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.

Autoclavable

Not Autoclavable

Description

Screw Cap with O-ring, Yellow, Non-Sterile cap only no tube

Material

Polypropylene, Ethylene Propylene

Color

Yellow

Packaging

500 x pk, 10 pk x cs, 5000 x cs. Single Bagged. ZipLock bag.

Clean Claims

Non-Sterile Free of: Rnase/Dnase, Human and Mouse DNA, Pyrogen & Endotoxin, ATP, PCR Inhibitor

Binding Property

Low Nucleic Acid and Protein Binding & Low Enzyme Inhibition

Max. Torque

Manual/Hand Torque: Standard: 0.125 lbsf.in to 2.5 lbsf.in; Metric: 1.412 Ncm to 28.24 Ncm. Automated/Robotic Torque Standard: 1.312 lbsf.in to 2.5 lbsf.in; Metric: 14.83 Ncm to 28.24 Ncm

Temperature Range (Metric)

Cold Storage: -80° to +95°C. Liquid Nitrogen: Short term Vapor Phase & Quick Flash Freeze acceptable, not recommmended for LN2 submersion storage

Sterility

Non-sterile

Max. RCF

25,000 x g

Fit for Purpose

PCR Ready

Screw cap micro tubes and caps are not recommended for autoclave. Sterile options available.

Not intended to submerge and store in liquid phase LN₂.