Description
Safety screw cap closures, red, are polypropylene (PP) laboratory closures with thread 45 in a high-form profile for EH narrow-mouth bottles. The red colour supports quick visual identification on crowded benches, while the PP construction offers durable, chemically resistant sealing for everyday reagent and sample containers. High-form geometry aids handling when gloves are worn and helps maintain a firm closure during storage and short-distance transport. These caps are designed for use with matching pouring rings and bottle systems in research, analytical and quality-control environments. Supplied in packs of 10 pc(s) weighing 0,170 kg, they are practical for laboratory stockrooms that standardise on thread-45 bottle necks. From manufacturer DWK Life Sciences, the closures fit established labware ranges where reliable screw sealing of narrow-mouth bottles is required. They support routine bottle management for buffers, solvents and process samples without specialised tooling, helping laboratories keep containers securely closed between preparation, analysis and disposal steps.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Product type: Safety screw cap closures
- Colour: red
- Material: PP
- Thread size: 45
- Form: high form
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Safety screw cap closures, red, thread 45, tall form, for Erlenmeyer flasks, PP, 10 unit(s)
What is this article?
Safety screw cap closures, red, thread 45, tall form, for Erlenmeyer flasks, PP, 10 unit(s) is the article on this page. Luminix Health distributes DWK Life Sciences 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.

