Aluminum 20mm Crimp Seals

These 8mm Crimp Top Closures feature convenient pre-assembled caps and septa. They provide a secure leak-resistant seal and minimize contamination from handling. 8mm Crimp Top closures feature 4mm openings and are available with a variety of septa materials with and without liners to match your chromatography needs. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands.

Use Thermo Scientific™ SureSTART™ 18 mm Precision Screw Caps with screw vials that have an 18 mm opening, including our SureSTART 10 mL and 20 mL Screw Top Headspace Vials (Level 3). Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from magnetic steel caps with all-purpose silicone/PTFE septa designed to reduce autosampler needle issues. Select High Temperature septa to allow for heating to over 250°C without excessive septum softening or the release of volatile vapors.

Prevent septa push through and over- and under-tightening. With Advanced Vial Closure System (AVCS) technology built into 9 mm Thermo Scientific™ 9 mm Autosampler Vial Screw Caps and Septa you will get an optimal, consistent seal every time. With just one turn, they offer easy-on, easy-off convenience, and are a cost effective alternative to caps with bonded septa. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands.

Use Thermo Scientific™ SureSTART™ 11 mm Snap Caps with snap vials that have an 11 mm opening, including our SureSTART 2 mL Glass Snap Vials (Level 2). Select Level 2 products for high-throughput applications, when robustness and reproducibility are key. Choose from soft polyethylene caps with double snap functionality that guarantees a tight seal. Our snap caps include silicone/PTFE or rubber/TEF septa of various hardness values designed to reduce autosampler needle issues.