Description
Plastic stoppers made of polyethylene (PE) to DIN 12254 are octagonal closures for standard ground joint 7/16 laboratory glassware. The PE material offers a lightweight, durable alternative to glass stoppers for sealing flasks, tubes, and other vessels with matching taper joints during storage, transport, and everyday bench work. The octagonal head improves grip and makes insertion and removal straightforward, even when wearing gloves. Conforming to DIN 12254 ensures dimensional compatibility with common European ground-joint systems used in teaching, research, and quality-control laboratories. Supplied in a pack of 10 pieces from manufacturer Lenz, these stoppers support efficient equipping of multiple setups without frequent reordering. Unit weight is 0,013 kg, keeping the pack easy to handle and store with other stoppers and clamps. They are well suited to non-aggressive media and general laboratory applications where a reliable PE taper stopper is preferred over glass, and they integrate cleanly into standard ground-joint glassware workflows.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Material: polyethylene (PE)
- Standard: DIN 12254
- Ground joint: 7/16
- Shape: octagonal
- Weight: 0,013 kg
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Questions about Plastic stoppers, PE, DIN 12254, standard ground joint 7/16, octagonal
What is this article?
Plastic stoppers, PE, DIN 12254, standard ground joint 7/16, octagonal is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone 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.