Description
neochrom® screw cap short thread ND9 is a black polypropylene closure with short thread 9-425 and a 6 mm centre hole, supplied with a virgin PTFE septum. The open-hole design supports needle access for single-injection work in chromatography and related analytical sample handling. Septum thickness is 0,2 mm, and the virgin PTFE liner is described as high-temperature resistant, suiting routine disposable injection use on matching ND9 vials. Each pack contains 100 pieces, a practical quantity for day-to-day laboratory throughput and autosampler workflows. These neochrom® caps from manufacturer neolab - Labor combine a PP shell with a clean PTFE contact surface for sealing short-thread ND9 glass or plastic vials commonly used in HPLC and GC environments. The 9-425 short-thread geometry promotes secure seating, while the 6 mm aperture keeps the septum accessible for manual or automated piercing. Laboratories that standardise on ND9 short-thread consumables can integrate this black open-top configuration as a straightforward sealing option for single-use injection sequences without multi-injection resealing demands.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Brand: neochrom®
- Material: PP, black
- Thread: Short thread ND9 (9-425)
- Opening: 6 mm hole
- EAN: 4058072029692
- Technical Information Sheet:
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Questions about neochrom® Schraubkappe Kurzgewinde ND9, PP schwarz mit Loch, PTFE virginal, 100
What is this article?
neochrom® Schraubkappe Kurzgewinde ND9, PP schwarz mit Loch, PTFE virginal, 100 is the article on this page. Luminix Health distributes neolab for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.