What These Screw Top Vials Are
The 4 mL Screw Top Vials from intellistone are designed for laboratories that need a slightly larger working volume than standard 2 mL vials. Available in 4 mL Clear Screw Top Vial and 4 mL Amber Screw Top Vial formats, they offer reliable sealing, smooth borosilicate glass walls, and strong compatibility with GC/HPLC autosamplers and sample-preparation workflows.
As a laboratory consumables manufacturer and supplier, Intellistone provides these vials with stable quality, consistent dimensions, and OEM/ODM support for regulated environments.
Different Screw Top Vials We Offer
The 4 mL Clear Screw Top Vial provides excellent visibility for sample inspection and is ideal for general analytical applications. Its transparent borosilicate construction allows technicians to visually confirm clarity, volume, and particulate presence while maintaining chemical resistance for organic and aqueous samples.
The 4 mL Amber Screw Top Vial offers light protection for photosensitive samples. The amber tint blocks UV and visible light to prevent sample degradation during preparation, storage, and autosampler handling—making it ideal for compounds sensitive to oxidation or photolysis.
Key Features of Intellistone Screw Top Vials
High chemical resistance and thermal stability for GC/HPLC workflows.
Extra capacity for diluted samples, extraction steps, and prep workflows.
Secure sealing for both autosamplers and manual operations.
Choose visibility or UV protection depending on sample sensitivity.
Reduces sample adsorption and improves recovery.
Fits Agilent, Waters, Shimadzu, Thermo, PerkinElmer systems.
Reliable robotic handling for high-throughput environments.
Factory-direct supply, OEM/ODM labeling, and customized packaging available.
Where Screw Top Vials Add Value
4 mL Screw Top Vials are commonly used when workflows require larger volumes or additional sample-handling steps：
- GC/HPLC sample preparation with dilution or extraction
- Light-sensitive sample handling (amber version)
- Pharmaceutical QC and formulation analysis
- Environmental and residue testing
- Organic synthesis and purity analysis
- R&D workflows requiring higher-volume collection
OEM & Custom Options for Screw Top Vials
Intellistone supports OEM/ODM customization for global distributors and system integrators, including：
- Custom packaging (bulk, shrink-wrapped, cleanroom options)
- Private-label printing & branding
- Custom color or special-process glass
- Cap/septa combinations for specific applications
More About Screw Top Vial
- Techinial Specs
| Parameter | Specification |
| Type | 4 mL Clear Screw Top Vial / 4 mL Amber Screw Top Vial |
| Material | Borosilicate glass |
| Closure | Screw-thread (8-425 / 9-425 depending on model) |
| Capacity | 4 mL nominal |
| Color | Clear / Amber (UV-blocking) |
| Compatibility | GC & HPLC autosamplers, sample-prep racks |
| Chemical resistance | Excellent with organic & aqueous solvents |
| Surface finish | Smooth inner walls for improved recovery |
