PP Sample Tubes, External Thread, 1.2–5mL | Globe Scientific

External-Thread Polypropylene Sample Tubes, 1.2–5 mL, 1000/Case

The Globe Scientific External-Thread Sample Tubes are molded from medical-grade polypropylene with a screw-style external closure, supporting sample aliquoting, long-term specimen storage, and routine reagent dispensing. External threads resist cross-threading and clear the tube interior, easing complete recovery of viscous or small-volume samples. Available across 1.2, 2, 3, 4, and 5 mL formats, each option ships 1000 tubes per case.

Technical Specifications

Product Type	External-thread screw-cap sample tube
Volume/Size	1.2 mL, 2 mL, 3 mL, 4 mL, 5 mL
Material	Polypropylene (PP)
Closure/Cap	External (male) thread, screw closure
Graduation	Molded graduations and writing area
Sterility	Non-sterile; autoclavable (121°C)
Pack Size	1000 tubes per case

Available Options

5 mL (6059) — Bag of 1000	6059	$452.80
5 mL (6058) — Bag of 1000	6058	$452.80
4 mL (6055) — Bag of 1000	6055	$439.10
4 mL (6054) — Bag of 1000	6054	$439.10
3 mL (6053) — Bag of 1000	6053	$404.10
2 mL (6052) — Bag of 1000	6052	$338.30
2 mL (6051) — Bag of 1000	6051	$338.30
1.2 mL (6050) — Bag of 1000	6050	$338.30
5 mL (6039) — Bag of 1000	6039	$312.90
5 mL (6038) — Bag of 1000	6038	$312.90
4 mL (6035) — Bag of 1000	6035	$298.00
4 mL (6034) — Bag of 1000	6034	$298.00
3 mL (6033) — Bag of 1000	6033	$277.50
2 mL (6032) — Bag of 1000	6032	$214.50
2 mL (6031) — Bag of 1000	6031	$214.50
1.2 mL (6030) — Bag of 1000	6030	$214.50

Applications

Aliquoting buffers, standards, and reagents for daily bench workflows
Short- and long-term storage of biological specimens and extracts
Sample banking and biorepository archiving at refrigerated temperatures
Collection and transport of small-volume liquid samples
Reagent preparation and dilution series in QC and research labs
Autoclave-then-fill protocols requiring chemically inert vessels

Chemical Resistance

Aqueous buffers	Excellent
Dilute acids	Excellent
Dilute bases	Excellent
Alcohols	Good
Acetonitrile	Good
Aromatic solvents	Limited
Chlorinated solvents	Poor

Quality & Procurement

labsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Every case carries a lot number, supporting traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our team for volume quotes and standing-order arrangements.

Frequently Asked Questions

Are these tubes autoclavable?

Yes. Polypropylene construction tolerates standard autoclave cycles at 121°C, making the tubes suitable for sterilize-then-fill workflows.

What does "external thread" mean for these tubes?

The threads are on the outside of the tube neck (male thread), so the cap seats over the rim. This keeps the interior wall smooth for cleaner sample recovery and reduces cross-threading.