Description
neochrom® screw cap ND9 short thread is a red polypropylene closure for analytical sample vials that use the ND9 short-thread format. The cap combines a short thread 9-425 with a 6 mm centre hole and is fitted with a silicone white/PTFE red septum of 1,0 mm thickness. Temperature resistance spans −60 °C to +200 °C, and the closure is specified for single-injection use. Supplied in packs of 100 pieces from manufacturer neolab - Labor, these red PP screw caps support clear visual sorting on the bench while the open centre allows straightforward syringe access through the septum. The silicone/PTFE laminate is intended for routine sealing of ND9 short-thread vials in chromatography and related laboratory workflows where a defined hole diameter and disposable single-injection practice are required. Laboratories standardising on 9-425 short-thread systems can integrate this neochrom® ND9 red screw cap as a colour-coded option that pairs a durable polypropylene shell with a 1,0 mm silicone white face bonded to red PTFE, maintaining a consistent interface for needle penetration during sample introduction.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Brand: neochrom®
- Cap material: PP red, short thread 9-425
- Centre hole: 6 mm
- Septum: Silicone white/PTFE red, 1,0 mm
- EAN: 4058072029593
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Questions about neochrom® Schraubkappe ND9 Kurzgewinde, PP rot mit Loch, Silikon weiß/PTFE rot,
What is this article?
neochrom® Schraubkappe ND9 Kurzgewinde, PP rot mit Loch, Silikon weiß/PTFE rot, is the article on this page. Luminix Health distributes neolab for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

