The LLG Screw Caps N 10 with center hole are ideal for sealing vials in chromatography and analytical applications. Made from black polypropylene (PP), these caps are fitted with a high-performance triple-layer septum—PTFE red/Silicone white/PTFE red—for outstanding chemical resistance and resealability. With a hardness of 45° Shore A and 1.0 mm thickness, these septa ensure reliable performance during repeated needle penetrations. Designed to fit vials with a 10-425 thread, they are supplied in a pack of 100 for consistent lab use.
Key Features:
These LLG screw caps provide secure, chemically resistant sealing with excellent resealability—perfect for high-performance analytical workflows.
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