Open-Top Screw Caps

Use Thermo Scientific™ SureSTART™ 11 mm Crimp Caps with crimp vials that have an 11 mm opening, including our SureSTART 2 mL Glass Crimp Vials (Level 1). Select Level 1 caps for chromatography approved, cost optimized products that are suitable for everyday analyses and compatible with all instrument types. Choose from aluminum caps with silicone/PTFE or rubber/TEF septa of various hardness values designed to reduce autosampler needle issues. Use Thermo Scientific™ Manual or Electronic Crimpers and Decappers for easy application and removal of crimp caps.

Use Thermo Scientific™ SureSTART™ 9 mm Screw Caps with screw vials that have a 9 mm opening, including our SureSTART 2 mL Glass Screw Vials and 2 mL Polypropylene Screw Microvials for <2 mL samples (Level 1). Select Level 1 caps for chromatography approved, cost optimized products that are suitable for everyday analyses and compatible with all instrument types. Choose from polypropylene caps with silicone/PTFE or rubber/TEF septa designed to reduce autosampler needle issues. Pre-slit and bonded septa options are available. Our AVCS™ caps incorporate Advanced Vial Closure System technology to ensure optimal seal compression when closing a vial. Use AVCS screw caps with our SureStop™ vials for effective seals, consistent data, and increased sample throughput.

Use Thermo Scientific™ SureSTART™ 11 mm Crimp Caps with crimp vials that have an 11 mm opening, including our SureSTART 2 mL Glass Crimp Vials and Glass Crimp Microvials for <2 mL samples (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 aluminum and magnetic steel caps with all-purpose silicone/PTFE septa of various hardness values designed to reduce autosampler needle issues. Use Thermo Scientific™ Manual or Electronic Crimpers and Decappers for easy application and removal of crimp caps.

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.