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Thumbnail Filmstrip of Magnetic Screw Top 18mm Silver Aluminum Vial Cap, 100/Pk Images
Magnetic Screw Top 18mm Silver Aluminum Vial Cap, 100/Pk - CV2025
Manufactured from chemically resistant polypropylene, Tisch screw-thread caps provide a dependable seal without introducing extractable contaminants into analytical samples. Open-center designs expose the septum for needle access, while closed-top variants provide a complete vapor barrier for storage applications where injection access is not required. Consistent production quality eliminates the containment variables that compromise injection precision, supporting validated analytical performance at every step.
When your analytical methods require consistent sample containment from preparation through injection, every component in the closure system matters. Consistent thread engagement and torque response across every cap in the pack give you the sealing predictability that automated capping systems and overnight runs demand. Standardize your sample containment system on components engineered for the dimensional precision and chemical inertness your chromatographic methods demand.
Compatible Chromatography Components
| Vials | 18mm Headspace Clear and Amber Glass Vials (10mL, 20mL, Round Bottom) |
| Septa | 17.5mm PTFE/Silicone and PTFE/Butyl |
| Platform | Headspace GC Autosamplers |
| Thread | 18mm Precision Thread / ND18 |
- Cap Size
- 18mm
- Color
- Silver Cap
- Construction
- Aluminum
- Diameter
- 18mm
- Pack Count
- 100
- Sterility
- Nonsterile
- Vial Cap Type
- Screw-top
- Weight
- 0.37
- Overnight Run Preparation - Reliable seal integrity maintains sample containment throughout extended unattended autosampler sequences.
- Multi-Method Laboratories - Color-coded cap options enable visual batch identification and tray-position tracking across parallel methods.
- Sample Storage Sealing - Closed-top cap variants provide a complete vapor barrier for extended ambient or refrigerated sample storage.
- High-Throughput Screening - Consistent thread engagement supports rapid automated capping across large sample preparation batches.
- Quality Control Workflows - Chemical resistance ensures the cap contributes no extractable contaminants to regulated pharmaceutical samples.
- Automated Capping Systems - Precision-molded threads deliver uniform torque response compatible with robotic capping station specifications.