NKSSC-18M-F 18 mm Silver Magnetic Screw Cap With 1.5 mm Blue PTFE/White Silicone Septa (CAT#: STEM-AL-0102-ZJF)

This product is an 18 mm silver magnetic screw cap for precision screw headspace vials. It is configured with an 8 mm center hole and blue PTFE/white silicone septa. The magnetic metal cap supports automated handling with compatible magnetic-picking autosamplers. The 1.5 mm septa support easier needle penetration and reduced fragmentation during sampling. The screw closure design provides a convenient and reproducible sealing process. The cap is compatible with 10 mL and 20 mL precision screw headspace vials. The flat cap surface supports secure magnetic handling and helps reduce vial handling instability. This model is suitable for headspace and SPME applications using CTC or Shimadzu autosamplers.

Closure Type: Screw closure with 8 mm center hole
Nominal Diameter: N 18
Cap Size: 18 mm
Cap Color: Silver
Cap Material: Magnetic metal
Septa Material: Blue PTFE/white silicone
Septa Thickness: 1.5 mm
Compatible Vials: 10 mL and 20 mL precision screw headspace vials
Autosampler Compatibility: CTC and Shimadzu
Recommended Application: Headspace and SPME

Magnetic cap for automated handling
Center-hole design for needle access
Thin septa for easier needle penetration
Reduced septa fragmentation during sampling
Screw closure format for reproducible sealing
Flat cap surface for secure magnetic pickup
Compatible with precision screw headspace vials
Suitable for SPME workflows