Description
Screw caps GL 40 are transparent laboratory closures produced from low-density polyethylene (PE-LD) and equipped with a DIN thread for secure fitting on GL 40 threaded bottles. These caps serve as reliable sealing components for sample bottles, reagent containers and media vessels used throughout analytical, biological and industrial laboratories. The PE-LD material is food-law compliant, supporting applications that require materials suitable for contact with foodstuffs or related preparations. Each pack contains 100 pieces, providing an economical supply for routine laboratory operations and bottle preparation workflows. The transparent polyethylene allows users to observe contents without removing the closure, while the standardised DIN GL 40 thread ensures compatibility with matching glass and plastic bottles. These screw caps from manufacturer Marienfeld combine lightweight handling with a practical seal for everyday storage and transport of liquids or solids. They suit general laboratory organisation, quality-control sampling and secure closure of threaded vessels in research and production environments where DIN-standard GL 40 necks are employed.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Product type: screw caps
- Thread size: GL 40
- Material: transparent PE-LD
- Thread standard: DIN thread
- EAN: 4250317313676
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Questions about Screw caps GL 40,
What is this article?
Screw caps GL 40, is the article on this page. Luminix Health distributes Marienfeld 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.