Screw Cap Vials

Quick Answer: Screw Cap Vials are small glass containers fitted with a threaded screw cap, used for securely storing, transporting, and sealing liquid or solid samples in chromatography, analytical testing, and general laboratory sample storage.

Description

Screw Cap Vials from LabEquip are compact glass vials with a threaded neck that accepts a matching screw cap, often fitted with a rubber or PTFE-lined septum for an airtight, leak-resistant seal. This makes them well suited to storing samples that need to be protected from evaporation, contamination, or spillage during handling and transport.

The screw cap design allows the vial to be opened and re-sealed repeatedly without losing its sealing integrity, which is useful in applications such as chromatography sample preparation, where a vial may be accessed multiple times during testing. The clear glass body also allows the contents to be checked visually without opening the cap.

These vials are supplied in a range of standard capacities and cap/septum options — confirm the exact volume, cap type, and septum material required for your application at the time of enquiry.

Specifications

Applications

• Storing chromatography samples between preparation and analysis
• Secure, leak-resistant storage of small liquid or solid laboratory samples
• Transporting samples between laboratories or departments
• Short- and medium-term storage of reagents or standards in small quantities
• Quality control and analytical testing workflows requiring repeated vial access

Care & Handling

• Check that the cap and septum are seated correctly each time the vial is closed to maintain an airtight seal.
• Avoid over-tightening the screw cap, which can damage the septum or cap threads over repeated use.
• Clean and dry vials thoroughly between uses to avoid cross-contamination of samples.
• Inspect septa periodically for punctures or wear if vials are accessed repeatedly, and replace as needed.
• Store vials upright in a rack or tray to protect the cap seal and prevent spillage.

Why Choose LabEquip

LabEquip supplies screw cap vials alongside a wide range of lab glassware and general chemistry lab equipment for analytical, quality control, and teaching laboratories. Our team can help you confirm the right capacity, cap type, and septum for your application. For bulk orders, institutional procurement, or technical questions about this product, please contact us and our team will assist promptly.

Frequently Asked Questions

What are screw cap vials used for?

They are used to securely store, transport, and seal small liquid or solid samples, and are widely used as chromatography sample vials in analytical laboratories.

Are screw cap vials reusable?

Yes, the screw cap can be opened and re-sealed repeatedly. The septum should be checked periodically for wear if the vial is accessed frequently.

What type of seal do screw cap vials use?

They typically use a threaded screw cap fitted with a rubber or PTFE-lined septum, which provides an airtight seal while allowing repeated access to the vial.

Where are screw cap vials commonly used?

They are commonly used in analytical and chromatography laboratories, quality control departments, and any setting requiring secure small-sample storage.

What capacity do screw cap vials come in?

These vials are supplied in a range of standard capacities. Please confirm the exact volume and cap/septum type you require when you enquire.

How should screw cap vials be cleaned and stored?

Clean and dry vials thoroughly between uses, check the cap and septum seal each time, and store upright in a rack or tray to protect the seal.

Last Updated: September 2026