Description
Screw caps N-24 with hole provide dependable laboratory closures for bottles and vessels fitted with matching N-24 threads. Made from black polypropylene (PP), the caps offer a durable, chemically resistant body suitable for everyday laboratory sealing tasks. A central hole in each cap enables combination with septa or related accessories, facilitating sampling, reagent introduction, or controlled access without complete removal of the closure. Cap size N-24 delivers a secure mechanical fit on corresponding neck finishes, helping maintain seal integrity during storage and handling. Packaged as 100 pieces per pack from manufacturer Witeg, these screw caps are practical for laboratories that require ready stock of larger-format closures. Net weight of the pack is 0,4 kg. The black PP construction balances rigidity with ease of handling and is appropriate for many aqueous and organic laboratory applications. Use them as standard or replacement N-24 screw caps with hole for sample bottles, reagent containers, and related laboratory glassware or plasticware systems.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Product type: Screw caps with hole
- Cap size: N-24
- Material: Black polypropylene (PP)
- Design: Central hole for septum use
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Questions about Screw caps N-24 with hole
What is this article?
Screw caps N-24 with hole is the article on this page. Luminix Health distributes Witeg 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.