24mm Screw Caps with Septa (24-400)

24mm Screw Cap with Septa, 24-400

1) Basic Information

Product Name24mm Screw Cap with Septa, 24-400
Cap MaterialPP
Cap Thread24-400
Cap ColorBlack/White
SeptaPTFE/Silicone
Septa thickness3mm
ApplicationFor LC/GC
Packaging100 pcs Packed in one Bag

2) Product Overview

24-400 closed-top PP caps with pre-installed septa are premium lab fittings for reliable sealing of various sample vials.
Manufactured from chemical-resistant polypropylene (PP), these caps deliver long-term structural stability and service life. The integrated septa strengthen airtight performance to stop liquid leakage and shield samples from airborne contamination.
The 24-400 thread specification fits matching threaded vial necks, making it a staple universal lab consumable.
 

3) Key Features

  • Designed exclusively for 20/40/60 mL vials with standard 24-400 screw thread
  • PP cap paired with firmly fitted PTFE/silicone composite septa; outstanding chemical resistance and repeatable resealing performance. 
  • Silicone provides superior tight sealing while PTFE offers powerful anti-corrosion capacity
  • Both caps and septa liners are reusable, washable, heat-tolerant and autoclavable to meet diverse experimental requirements

4) Applications

24-400 PP caps with septa are extensively applied in chemistry, bioscience and medical research, especially for long-term liquid sample storage and shipment.
They perfectly match GC & HPLC sample vials, and are also widely deployed in environmental monitoring, clinical diagnosis and food safety testing.
Excellent sealing capability effectively avoids loss of volatile organic compounds (VOCs), securing accurate and consistent analytical results. Featuring great resistance to high and low temperatures, these caps work perfectly for experiments requiring thermal treatment or frozen sample preservation.

 

5)Ordering Information

P/N

Description

Pack Of

P02095

24mm Black Screw Polypropylene Cap,15mm Centre Hole + Nature PTFE/nature Silicone Septa

100

24 400 screw cap22

P02096

24mm White Screw Polypropylene Cap,15mm Centre Hole + Nature PTFE/nature Silicone Septa

100

24 400 screw cap21

P02097

24mm Black Screw Polypropylene Cap,Without Hole + Red PTFE/white Silicone Septa

100

24 400 screw cap20

P02098

24mm White Screw Polypropylene Cap,Without Hole + Red PTFE/white Silicone Septa

100

24 400 screw cap19

P02099

24mm Black Screw Polypropylene Cap,Without Hole + Nature PTFE/nature Silicone Septa

100

24 400 screw cap18

P02100

24mm White Screw Polypropylene Cap,Without Hole + Nature PTFE/nature Silicone Septa

100

24 400 screw cap17

P02101

24mm Black Screw Polypropylene Cap,Without Hole + Nature PTFE/nature Silicone Septa (Deeper Cap)

100

24 400 screw cap16

P02102

24mm White Screw Polypropylene Cap,Without Hole + Nature PTFE/nature Silicone Septa (Deeper Cap)

100

24 400 screw cap14

P02103

24mm Black Screw Polypropylene Cap,Without Hole + PE Septa

100

24 400 screw cap13

P02104

24mm White Screw Polypropylene Cap,Without Hole + PE Septa

100

24 400 screw cap12

P02105

24mm Black Screw Polypropylene Cap,Without Hole + Aluminum Septa

100

24 400 screw cap11

P02106

24mm White Screw Polypropylene Cap,Without Hole + Aluminum Septa

100

24 400 screw cap10

P02107

24mm Black Screw Polypropylene Cap,15mm Centre Hole + White PTFE/white Silicone Septa,Bonded

100

24 400 screw cap22

P02108

24mm White Screw Polypropylene Cap,15mm Centre Hole + Nature PTFE/nature Silicone Septa,Bonded

100

24 400 screw cap8