Caps, Screw Top, with Silicone Rubber / PTFE Pre-Slit, 40mil Septa, bonded in wide mouth, "knurled", polypropylene, Black Caps. For use with 10-425mm threads, 12x32mm autosampler vials. BASIK Brand. 100/PK. Special Order Item.
Additional Information:
BASIK™ Screw Caps with Pre-Slit Silicone/PTFE Septa are designed for reliable autosampler performance in HPLC, UHPLC, GC, and LC-MS laboratories. These black polypropylene caps feature a bonded silicone rubber/PTFE septa assembly that provides excellent chemical resistance, dependable sealing, and consistent autosampler needle penetration. The pre-slit septa design helps reduce coring and minimizes resistance during repeated injections, making these caps ideal for high-throughput analytical workflows.
9503S-35C-K is manufactured for use with standard 10-425 threaded 12 x 32 mm autosampler vials. The wide-mouth cap configuration promotes accurate autosampler needle alignment while the bonded septa design helps prevent liner dislodgement during handling, storage, and repeated sample injections. The black knurled cap provides a secure grip for easy installation and removal.
The 40 mil (1.016 mm) silicone/PTFE septa is slightly thinner than many conventional autosampler septa, allowing easier needle penetration while maintaining reliable resealing characteristics. These caps are well suited for pharmaceutical, environmental, food, chemical, clinical, and research laboratories requiring dependable sample containment and consistent autosampler performance.
Key Benefits
Pre-slit silicone/PTFE septa
Bonded septa design
Wide-mouth cap configuration
Black polypropylene construction
Knurled cap for improved grip
Reduced needle penetration force
Helps minimize septa coring
Reliable sample sealing
Compatible with autosampler systems
Suitable for routine and high-throughput analysis
Typical Applications
HPLC analysis
UHPLC analysis
LC-MS applications
GC applications
Pharmaceutical testing
Environmental analysis
Food testing
Chemical analysis
Quality control laboratories
Research laboratories
Specifications
Product Type: Screw Cap
Closure Style: Screw Top
Thread Size: 10-425
Cap Material: Polypropylene
Cap Color: Black
Cap Style: Wide Mouth, Knurled
Septa Material: Silicone Rubber / PTFE
Septa Design: Pre-Slit, Bonded
Septa Thickness: 40 mil (1.016 mm)
Compatible Vials: 12 x 32 mm, 10-425 Thread
Package Size: 100/PK
Brand: BASIK™
Important Notes
Pre-slit septa allows easier autosampler needle penetration
Bonded septa design helps prevent liner movement during use
Wide-mouth configuration supports automated sample handling
40 mil septa thickness is slightly thinner than many standard septa designs
Suitable for repeated autosampler injections
Compatible with standard 10-425 threaded autosampler vials
Designed for HPLC, UHPLC, GC, and LC-MS applications
Black polypropylene cap provides durability and chemical resistance
Case quantities are available for higher-volume laboratory requirements
Special Order Item Information
Please review the Special Order Item Information for complete details.
For pricing confirmation, availability, lead times, or application assistance, please contact MICROSOLV Customer Service.