Screw Thread Vials

Screw Thread Autosampler Vials

Chrom Tech’s 9 mm wide-mouth screw thread autosampler vials are the preferred choice for most modern HPLC and LC/MS applications. The 40% larger opening improves pipetting accuracy, reduces handling errors, and accommodates high-throughput workflows without compromising autosampler compatibility.

Available in clear or amber Type I borosilicate glass, polymeric formats, and MS-certified low-bleed vials, this portfolio supports routine quantitation through highly sensitive mass spectrometry analyses. Pair these vials with Chrom Tech’s preassembled screw caps for consistent, leak-free sealing and reliable performance across demanding chromatographic methods.

Glass Wide Mouth Vials & Closures (9 mm) – 100/Pack
2 mL Glass Wide Mouth Vials 2 mL Graduated Glass Wide Mouth Vials
Septum Type 2 mL
Clear		 2 mL
Amber		 2 mL Graduated
Clear		 2 mL Graduated
Amber
Convenience Pack (CP) – Vial with Pre-Assembled Cap & Septa
PTFE/Silicone (CTC-0952) ★CP-0952 CP-0952A CP-0952GS CP-0952GSA
PTFE/Silicone w/ Slit (CTC-0955) ★CP-0955 CP-0955A CP-0955GS CP-0955GSA
PTFE/Silicone/PTFE (CTC-0957) CP-0957 CP-0957A CP-0957GS CP-0957GSA
PTFE/Rubber (CTC-0956) CP-0956 CP-0956A CP-0956GS CP-0956GSA
Chrom Tech Vial Only (CTV)
N/A CTV-1209 CTV-1209A CTV-1209GS CTV-1209GSA

★ Top Seller: 9 mm vials are recommended for use with autosamplers.

PRE-ASSEMBLED CLOSURE (CAP & SEPTA)
Septa Black Cap & Septa Blue Bonded Cap & Septa Magnetic Cap
PTFE/Silicone CTC-0952 CTC-0952-BOND CTM-0952
PTFE/Silicone w/ Slit CTC-0955 CTC-0955-BOND —
PTFE/Silicone/PTFE CTC-0957 — —
PTFE/Rubber CTC-0956 — CTM-0956
Viton® CTC-0902M — —
PTFE/F217 Lined 536009 (storage cap)
Glass Wide Mouth Limited Volume Vials & Closures (9 mm)
300 µL Vial with Fused Insert 1.5 mL Recovery Vial 1.2 mL Max Recovery Vial
300 µL w/ Fused Insert 1.5 mL Recovery Vial 1.2 mL Max Recovery
Septa Clear Amber Clear Amber Clear
Convenience Pack (CP) Includes Vial & Bonded Pre-Assembled Cap & Septa
PTFE/Silicone (CTC-0952-BOND) CP-0952-03 CP-0952A-03 CPH-0952 CPH-0952A CPD-0952
PTFE/Silicone w/ Slit (CTC-0955-BOND) CP-0955-03 CP-0955A-03 CPH-0955 CPH-0955A CPD-0955
Chrom Tech Vial Only
N/A CTV-1209-03 — CTH-0900 — —
Polymeric Wide Mouth Limited Volume Vials (9 mm) – 100/pk
CTV-0910P CTV-0910T CTV-0930P CTV-0950P CTV-0970P CTH-0900P
CTV-0910P CTV-0910T CTV-0930P CTV-0950P CTV-0970P CTH-0900P
100 µL 100 µL 300 µL 500 µL 700 µL 1.5 mL
PP TPX PP PP PP PP
Vial Inserts for Wide Mouth Vials – 100/pk
Inserts for 9 mm Screw Thread, Snap Seal, Snap Ring™ & Wide Mouth Crimp Vials
CTI-9405 TS-410 CTI-9420 CTI-9425 CTI-9525 405342
CTI-9405 TS-410 CTI-9420 CTI-9425 CTI-9525 405342
50 µL 100 µL 200 µL 250 µL 250 µL 300 µL
Clear Clear Clear Clear Natural Clear
Glass Glass Glass Glass Polypropylene Glass
■ TECH TIP
These inserts are designed to fit the following wide mouth vials:

9 mm Screw Thread
Snap Seal
Snap Ring™
Wide Mouth Crimp
Key Definitions ▸
9 mm Wide-Mouth Screw Thread Vial
A threaded autosampler vial with a wider 9 mm opening that improves pipetting access and autosampler needle targeting.
Type I Borosilicate Glass
A chemically inert glass material ideal for quantitative LC/MS and HPLC analyses requiring low extractables.
Polymeric Autosampler Vial
A vial made from PP or TPX that reduces breakage risk and offers low adsorption for specific analytes.
MS-Certified Vial
A vial tested to ensure minimal contamination and exceptionally low background for trace-level LC/MS workflows.
Preassembled Screw Cap
A cap supplied with septum installed for consistent sealing and faster preparation in high-throughput labs.
Frequently Asked Questions ▸

When should I choose 9 mm screw thread vials?

They are ideal for routine HPLC and LC/MS applications where wide-mouth access and consistent sealing are required.

When should I use clear vs. amber glass?

Use clear for routine visual inspection and amber for light-sensitive or long-term stored samples.

Are polymer vials compatible with LC/MS?

Yes—many workflows allow PP or TPX vials, but MS-certified glass provides the lowest background for sensitive assays.

Do I need MS-certified vials for every application?

Not always—standard borosilicate vials work well for routine HPLC, but trace-level LC/MS benefits from MS-certified formats.