Description
SK N9-L magnetic screw cap is an N 9 closure with a silver finish, intended for chromatography and sample vials that require a magnetic screw cap. The cap is fitted with a holed septum of white silicone bonded to red PTFE, specified at a hardness of 45° shore A and a septum thickness of 1,0 mm. These dimensions and materials support reliable needle penetration and chemical resistance at the sample contact face during routine autosampler or manual injection workflows. Packaged in units of 100 pieces, the SK N9-L magnetic screw cap from manufacturer Macherey-Nagel is suited to laboratories that standardise on N 9 thread geometry and prefer a silver magnetic cap with a white silicone/red PTFE septum combination. The defined shore hardness and 1,0 mm septum thickness help maintain consistent sealing behaviour across a pack, while the magnetic design supports handling on compatible racks and autosamplers. This screw-cap format is commonly selected for analytical sample preparation, storage and instrumental analysis where an N 9 magnetic closure with a holed silicone/PTFE septum is specified.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Cap type: N 9 magnetic screw cap
- Cap colour: Silver
- Septum: Silicone white/PTFE red, with hole
- Hardness: 45° shore A
- EAN: 4046681088407
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Questions about SC N9-H, mag, si, Sil w/PTFE r, 45°,1.0
What is this article?
SC N9-H, mag, si, Sil w/PTFE r, 45°,1.0 is the article on this page. Luminix Health distributes Macherey-Nagel 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.